/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=HIGHLEXORDER --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 [2020-09-24 23:25:44,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:25:44,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:25:44,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:25:44,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:25:44,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:25:44,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:25:44,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:25:44,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:25:44,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:25:44,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:25:44,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:25:44,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:25:44,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:25:44,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:25:44,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:25:44,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:25:44,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:25:44,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:25:44,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:25:44,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:25:44,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:25:44,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:25:44,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:25:44,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:25:44,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:25:44,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:25:44,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:25:44,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:25:44,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:25:44,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:25:44,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:25:44,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:25:44,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:25:44,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:25:44,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:25:44,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:25:44,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:25:44,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:25:44,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:25:44,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:25:44,703 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 [2020-09-24 23:25:44,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:25:44,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:25:44,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:25:44,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:25:44,753 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:25:44,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:25:44,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:25:44,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:25:44,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:25:44,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:25:44,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:25:44,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:25:44,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:25:44,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:25:44,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:25:44,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:25:44,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:25:44,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:25:44,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:25:44,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:25:44,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:25:44,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:25:44,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:25:44,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:25:44,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:25:44,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:25:44,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 23:25:44,759 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 23:25:45,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:25:45,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:25:45,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:25:45,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:25:45,252 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:25:45,253 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-24 23:25:45,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdfce584/53f39b5ec48c4e86b29b7d72f7abcd60/FLAG9d37e0a9d [2020-09-24 23:25:46,139 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:25:46,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-24 23:25:46,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdfce584/53f39b5ec48c4e86b29b7d72f7abcd60/FLAG9d37e0a9d [2020-09-24 23:25:46,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdfce584/53f39b5ec48c4e86b29b7d72f7abcd60 [2020-09-24 23:25:46,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:25:46,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:25:46,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:25:46,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:25:46,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:25:46,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:25:46" (1/1) ... [2020-09-24 23:25:46,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba042c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:46, skipping insertion in model container [2020-09-24 23:25:46,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:25:46" (1/1) ... [2020-09-24 23:25:46,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:25:46,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:25:48,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:25:48,618 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:25:48,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:25:48,950 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:25:48,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48 WrapperNode [2020-09-24 23:25:48,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:25:48,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:25:48,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:25:48,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:25:48,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (1/1) ... [2020-09-24 23:25:48,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (1/1) ... [2020-09-24 23:25:49,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (1/1) ... [2020-09-24 23:25:49,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (1/1) ... [2020-09-24 23:25:49,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (1/1) ... [2020-09-24 23:25:49,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (1/1) ... [2020-09-24 23:25:49,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (1/1) ... [2020-09-24 23:25:49,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:25:49,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:25:49,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:25:49,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:25:49,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (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 [2020-09-24 23:25:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:25:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:25:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-24 23:25:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-24 23:25:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-24 23:25:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-24 23:25:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-24 23:25:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-24 23:25:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-24 23:25:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 23:25:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-24 23:25:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-24 23:25:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-24 23:25:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-24 23:25:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-24 23:25:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-24 23:25:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-24 23:25:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 23:25:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 23:25:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 23:25:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 23:25:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 23:25:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 23:25:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 23:25:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 23:25:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 23:25:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-24 23:25:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-24 23:25:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-24 23:25:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-24 23:25:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-24 23:25:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-24 23:25:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-24 23:25:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-24 23:25:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-24 23:25:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-24 23:25:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-24 23:25:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-24 23:25:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-24 23:25:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-24 23:25:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-24 23:25:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-24 23:25:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-24 23:25:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-24 23:25:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:25:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 23:25:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 23:25:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 23:25:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 23:25:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 23:25:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-24 23:25:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-24 23:25:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 23:25:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 23:25:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 23:25:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 23:25:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 23:25:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 23:25:49,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 23:25:49,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 23:25:49,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 23:25:49,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 23:25:49,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 23:25:49,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 23:25:49,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 23:25:49,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 23:25:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 23:25:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 23:25:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 23:25:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-24 23:25:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-24 23:25:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-24 23:25:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 23:25:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-24 23:25:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-24 23:25:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-24 23:25:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-24 23:25:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-24 23:25:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-24 23:25:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 23:25:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-24 23:25:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-24 23:25:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 23:25:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-24 23:25:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-24 23:25:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 23:25:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-24 23:25:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-24 23:25:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-24 23:25:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-24 23:25:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-24 23:25:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-24 23:25:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-24 23:25:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-24 23:25:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 23:25:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 23:25:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 23:25:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-24 23:25:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:25:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 23:25:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-24 23:25:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-24 23:25:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-24 23:25:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:25:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-24 23:25:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-24 23:25:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-24 23:25:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-24 23:25:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 23:25:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-24 23:25:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-24 23:25:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 23:25:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:25:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 23:25:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 23:25:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 23:25:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 23:25:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 23:25:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-24 23:25:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-24 23:25:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-24 23:25:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:25:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-24 23:25:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-24 23:25:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-24 23:25:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:25:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-24 23:25:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 23:25:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-24 23:25:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-24 23:25:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-24 23:25:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-24 23:25:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-24 23:25:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 23:25:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:25:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 23:25:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:25:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 23:25:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 23:25:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 23:25:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 23:25:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:25:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 23:25:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 23:25:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 23:25:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 23:25:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 23:25:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 23:25:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 23:25:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-24 23:25:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-24 23:25:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-24 23:25:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-24 23:25:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-24 23:25:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-24 23:25:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-24 23:25:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-24 23:25:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-24 23:25:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-24 23:25:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-24 23:25:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-24 23:25:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 23:25:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-24 23:25:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 23:25:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-24 23:25:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-24 23:25:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-24 23:25:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-24 23:25:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-24 23:25:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-24 23:25:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-24 23:25:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-24 23:25:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-24 23:25:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-24 23:25:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-24 23:25:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-24 23:25:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-24 23:25:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-24 23:25:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-24 23:25:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-24 23:25:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:25:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-24 23:25:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-24 23:25:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-24 23:25:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-24 23:25:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:25:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-24 23:25:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-24 23:25:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-24 23:25:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 23:25:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 23:25:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 23:25:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:25:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 23:25:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 23:25:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 23:25:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 23:25:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 23:25:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 23:25:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 23:25:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 23:25:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 23:25:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 23:25:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 23:25:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 23:25:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 23:25:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 23:25:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 23:25:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 23:25:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:25:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 23:25:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:25:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 23:25:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:25:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 23:25:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:25:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 23:25:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 23:25:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 23:25:50,113 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 23:25:51,656 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:25:51,656 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 23:25:51,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:25:51 BoogieIcfgContainer [2020-09-24 23:25:51,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:25:51,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:25:51,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:25:51,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:25:51,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:25:46" (1/3) ... [2020-09-24 23:25:51,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd0508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:25:51, skipping insertion in model container [2020-09-24 23:25:51,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:48" (2/3) ... [2020-09-24 23:25:51,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd0508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:25:51, skipping insertion in model container [2020-09-24 23:25:51,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:25:51" (3/3) ... [2020-09-24 23:25:51,680 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 [2020-09-24 23:25:51,692 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:25:51,705 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:25:51,729 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:25:51,766 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:25:51,766 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:25:51,766 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:25:51,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:25:51,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:25:51,767 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:25:51,767 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:25:51,767 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:25:51,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-24 23:25:51,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 23:25:51,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:25:51,838 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] [2020-09-24 23:25:51,839 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:25:51,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:25:51,850 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-24 23:25:51,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:25:51,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363077166] [2020-09-24 23:25:51,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:25:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:52,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:52,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:53,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:56,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:57,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:57,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 23:25:57,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:25:57,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:25:57,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-24 23:25:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 23:25:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:25:57,955 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 23:25:57,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 23:25:58,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 23:25:58,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:58,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:58,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:25:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:25:58,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 23:25:58,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:58,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:25:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:25:58,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 23:25:58,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 23:25:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:25:58,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 23:25:58,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:58,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:58,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:25:58,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 23:25:58,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:58,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:58,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 23:25:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:25:58,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:25:58,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 23:25:58,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:25:58,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:25:58,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:25:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:25:58,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 23:25:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:25:58,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:25:58,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 23:25:58,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:25:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:25:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:25:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:58,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 23:25:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:59,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:59,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:25:59,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 23:25:59,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 23:25:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:59,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:59,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:59,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:59,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:25:59,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 23:25:59,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:25:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:59,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:59,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:25:59,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 23:25:59,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:59,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 23:25:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:59,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:59,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:25:59,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 23:25:59,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:25:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 23:25:59,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363077166] [2020-09-24 23:25:59,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:25:59,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:25:59,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49890129] [2020-09-24 23:25:59,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:25:59,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:25:59,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:25:59,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:25:59,309 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 10 states. [2020-09-24 23:26:00,402 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 23:26:01,418 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 23:26:01,797 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 23:26:17,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:26:17,828 INFO L93 Difference]: Finished difference Result 3861 states and 4542 transitions. [2020-09-24 23:26:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 23:26:17,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-24 23:26:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:26:17,878 INFO L225 Difference]: With dead ends: 3861 [2020-09-24 23:26:17,878 INFO L226 Difference]: Without dead ends: 2829 [2020-09-24 23:26:17,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-09-24 23:26:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2020-09-24 23:26:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1995. [2020-09-24 23:26:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2020-09-24 23:26:18,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2197 transitions. [2020-09-24 23:26:18,244 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2197 transitions. Word has length 230 [2020-09-24 23:26:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:26:18,246 INFO L479 AbstractCegarLoop]: Abstraction has 1995 states and 2197 transitions. [2020-09-24 23:26:18,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:26:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2197 transitions. [2020-09-24 23:26:18,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-24 23:26:18,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:26:18,256 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] [2020-09-24 23:26:18,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:26:18,257 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:26:18,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:26:18,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1284376602, now seen corresponding path program 1 times [2020-09-24 23:26:18,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:26:18,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56613927] [2020-09-24 23:26:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:26:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:18,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:18,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:21,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:23,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:23,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-09-24 23:26:23,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:26:23,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 23:26:23,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:23,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:26:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-24 23:26:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:26:23,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:23,819 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 23:26:23,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:26:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:23,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 23:26:24,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 23:26:24,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:26:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:24,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:26:24,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:24,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:26:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:24,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 23:26:24,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:24,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 23:26:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:26:24,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 23:26:24,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:24,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:26:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:26:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 23:26:24,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:24,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 23:26:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:24,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:26:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-24 23:26:24,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:26:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:26:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:24,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:24,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 23:26:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:24,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 23:26:24,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:26:24,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:26:24,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:24,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 23:26:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-24 23:26:24,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 23:26:24,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-24 23:26:24,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:24,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:26:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 23:26:24,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:26:24,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:26:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:24,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:26:24,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:24,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:24,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 23:26:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:26:25,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 23:26:25,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:25,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:26:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:25,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:26:25,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:26:25,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-09-24 23:26:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:26:25,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 23:26:25,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:26:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 23:26:25,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56613927] [2020-09-24 23:26:25,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:26:25,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 23:26:25,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291294548] [2020-09-24 23:26:25,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:26:25,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:26:25,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:26:25,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:26:25,282 INFO L87 Difference]: Start difference. First operand 1995 states and 2197 transitions. Second operand 11 states. [2020-09-24 23:26:26,286 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 23:26:33,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:26:33,344 INFO L93 Difference]: Finished difference Result 4676 states and 5335 transitions. [2020-09-24 23:26:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:26:33,346 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 284 [2020-09-24 23:26:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:26:33,369 INFO L225 Difference]: With dead ends: 4676 [2020-09-24 23:26:33,370 INFO L226 Difference]: Without dead ends: 2832 [2020-09-24 23:26:33,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:26:33,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2020-09-24 23:26:33,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1999. [2020-09-24 23:26:33,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2020-09-24 23:26:33,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2201 transitions. [2020-09-24 23:26:33,558 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2201 transitions. Word has length 284 [2020-09-24 23:26:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:26:33,559 INFO L479 AbstractCegarLoop]: Abstraction has 1999 states and 2201 transitions. [2020-09-24 23:26:33,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:26:33,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2201 transitions. [2020-09-24 23:26:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-09-24 23:26:33,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:26:33,566 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-09-24 23:26:33,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:26:33,566 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:26:33,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:26:33,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1099137378, now seen corresponding path program 2 times [2020-09-24 23:26:33,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:26:33,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865182521] [2020-09-24 23:26:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:26:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:33,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:33,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking...