/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 10:10:49,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 10:10:49,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 10:10:49,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 10:10:49,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 10:10:49,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 10:10:49,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 10:10:49,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 10:10:49,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 10:10:49,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 10:10:49,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 10:10:49,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 10:10:49,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 10:10:49,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 10:10:49,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 10:10:49,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 10:10:49,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 10:10:49,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 10:10:49,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 10:10:49,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 10:10:49,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 10:10:49,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 10:10:49,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 10:10:49,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 10:10:49,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 10:10:49,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 10:10:49,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 10:10:49,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 10:10:49,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 10:10:49,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 10:10:49,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 10:10:49,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 10:10:49,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 10:10:49,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 10:10:49,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 10:10:49,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 10:10:49,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 10:10:49,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 10:10:49,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 10:10:49,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 10:10:49,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 10:10:49,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 10:10:49,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 10:10:49,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 10:10:49,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 10:10:49,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 10:10:49,950 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 10:10:49,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 10:10:49,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 10:10:49,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 10:10:49,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 10:10:49,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 10:10:49,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 10:10:49,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 10:10:49,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 10:10:49,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 10:10:49,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 10:10:49,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 10:10:49,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 10:10:49,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 10:10:49,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:10:49,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 10:10:49,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 10:10:49,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 10:10:49,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 10:10:49,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 10:10:49,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 10:10:49,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 10:10:49,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 10:10:49,955 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 10:10:50,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 10:10:50,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 10:10:50,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 10:10:50,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 10:10:50,435 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 10:10:50,436 INFO L432 ainManager$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--arcnet--rfc1051.ko-entry_point.cil.out.i [2020-10-27 10:10:50,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/45d5b93c9/ce2f2231e2d2431397630528991462d1/FLAGcac4a4a2c [2020-10-27 10:10:51,369 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 10:10:51,370 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--arcnet--rfc1051.ko-entry_point.cil.out.i [2020-10-27 10:10:51,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/45d5b93c9/ce2f2231e2d2431397630528991462d1/FLAGcac4a4a2c [2020-10-27 10:10:51,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/45d5b93c9/ce2f2231e2d2431397630528991462d1 [2020-10-27 10:10:51,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 10:10:51,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 10:10:51,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 10:10:51,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 10:10:51,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 10:10:51,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:10:51" (1/1) ... [2020-10-27 10:10:51,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2b6652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:51, skipping insertion in model container [2020-10-27 10:10:51,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:10:51" (1/1) ... [2020-10-27 10:10:51,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 10:10:51,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 10:10:52,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:10:52,414 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 10:10:52,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:10:52,823 INFO L208 MainTranslator]: Completed translation [2020-10-27 10:10:52,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52 WrapperNode [2020-10-27 10:10:52,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 10:10:52,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 10:10:52,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 10:10:52,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 10:10:52,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... [2020-10-27 10:10:52,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... [2020-10-27 10:10:52,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... [2020-10-27 10:10:52,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... [2020-10-27 10:10:53,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... [2020-10-27 10:10:53,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... [2020-10-27 10:10:53,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... [2020-10-27 10:10:53,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 10:10:53,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 10:10:53,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 10:10:53,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 10:10:53,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:10:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 10:10:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 10:10:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-27 10:10:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 10:10:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-27 10:10:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 10:10:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-10-27 10:10:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 10:10:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 10:10:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 10:10:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 10:10:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 10:10:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 10:10:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 10:10:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 10:10:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-27 10:10:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_init [2020-10-27 10:10:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_exit [2020-10-27 10:10:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2020-10-27 10:10:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2020-10-27 10:10:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2020-10-27 10:10:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2020-10-27 10:10:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2020-10-27 10:10:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 10:10:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-27 10:10:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-27 10:10:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-27 10:10:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-27 10:10:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-27 10:10:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2020-10-27 10:10:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2020-10-27 10:10:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2020-10-27 10:10:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-27 10:10:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 10:10:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-27 10:10:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-27 10:10:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-27 10:10:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 10:10:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-27 10:10:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-27 10:10:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-27 10:10:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-27 10:10:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 10:10:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-27 10:10:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-27 10:10:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-27 10:10:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-27 10:10:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-27 10:10:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 10:10:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2020-10-27 10:10:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 10:10:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-27 10:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-27 10:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-27 10:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 10:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 10:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 10:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 10:10:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 10:10:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 10:10:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 10:10:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 10:10:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 10:10:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 10:10:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 10:10:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 10:10:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 10:10:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 10:10:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-27 10:10:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-27 10:10:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-27 10:10:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-27 10:10:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2020-10-27 10:10:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-27 10:10:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2020-10-27 10:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-27 10:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-27 10:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-27 10:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-27 10:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 10:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 10:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-27 10:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-27 10:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-27 10:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 10:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 10:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 10:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-27 10:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 10:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 10:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-10-27 10:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 10:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 10:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 10:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 10:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 10:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 10:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 10:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 10:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 10:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2020-10-27 10:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-27 10:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2020-10-27 10:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2020-10-27 10:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2020-10-27 10:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2020-10-27 10:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2020-10-27 10:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2020-10-27 10:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_init [2020-10-27 10:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 10:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_exit [2020-10-27 10:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 10:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 10:10:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-27 10:10:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 10:10:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 10:10:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 10:10:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 10:10:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 10:10:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-27 10:10:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 10:10:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-27 10:10:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-27 10:10:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-27 10:10:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 10:10:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-27 10:10:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-27 10:10:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-27 10:10:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-27 10:10:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-27 10:10:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-27 10:10:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 10:10:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 10:10:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 10:10:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 10:10:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 10:10:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 10:10:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 10:10:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 10:10:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 10:10:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 10:10:54,115 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 10:10:56,016 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 10:10:56,016 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 10:10:56,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:10:56 BoogieIcfgContainer [2020-10-27 10:10:56,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 10:10:56,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 10:10:56,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 10:10:56,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 10:10:56,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:10:51" (1/3) ... [2020-10-27 10:10:56,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cc4e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:10:56, skipping insertion in model container [2020-10-27 10:10:56,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:52" (2/3) ... [2020-10-27 10:10:56,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cc4e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:10:56, skipping insertion in model container [2020-10-27 10:10:56,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:10:56" (3/3) ... [2020-10-27 10:10:56,028 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2020-10-27 10:10:56,041 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 10:10:56,046 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 10:10:56,060 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 10:10:56,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 10:10:56,092 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 10:10:56,092 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 10:10:56,093 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 10:10:56,093 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 10:10:56,093 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 10:10:56,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 10:10:56,093 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 10:10:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-10-27 10:10:56,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 10:10:56,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:10:56,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:10:56,137 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:10:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:10:56,144 INFO L82 PathProgramCache]: Analyzing trace with hash 702282698, now seen corresponding path program 1 times [2020-10-27 10:10:56,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:10:56,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887573181] [2020-10-27 10:10:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:10:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:56,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:56,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:57,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:58,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:58,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 10:10:58,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:10:58,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2006 [2020-10-27 10:10:58,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:58,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:10:58,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 10:10:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 10:10:58,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 10:10:58,855 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 10:10:58,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:10:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:58,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:58,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:58,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:58,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 10:10:58,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:58,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:10:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:58,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:58,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:58,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:10:58,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 10:10:58,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:58,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:10:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:58,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:58,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:58,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:58,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:58,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:10:58,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:58,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:58,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:10:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:59,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:10:59,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:59,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:10:59,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:59,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:59,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:59,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:59,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:10:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:59,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:10:59,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:59,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:10:59,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:10:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:10:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:10:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:59,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:59,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:10:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:10:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:10:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:10:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:59,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:10:59,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:10:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:10:59,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:10:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:10:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 10:10:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:59,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:10:59,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:59,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:10:59,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:59,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:10:59,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:59,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:10:59,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:10:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:59,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:59,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:59,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:10:59,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:59,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:59,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:59,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:59,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 10:10:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:59,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:59,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:59,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:10:59,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:59,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:10:59,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:10:59,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 10:10:59,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887573181] [2020-10-27 10:10:59,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:10:59,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 10:10:59,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238863483] [2020-10-27 10:10:59,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 10:10:59,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:10:59,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 10:10:59,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-27 10:10:59,271 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 11 states. [2020-10-27 10:10:59,466 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 10:10:59,768 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 10:11:00,002 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 10:11:01,217 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 129 [2020-10-27 10:11:06,265 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 10:11:06,484 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 10:11:14,450 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-27 10:11:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:11:16,868 INFO L93 Difference]: Finished difference Result 842 states and 1155 transitions. [2020-10-27 10:11:16,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 10:11:16,871 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-10-27 10:11:16,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:11:16,893 INFO L225 Difference]: With dead ends: 842 [2020-10-27 10:11:16,894 INFO L226 Difference]: Without dead ends: 545 [2020-10-27 10:11:16,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-27 10:11:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-27 10:11:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 496. [2020-10-27 10:11:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-27 10:11:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 633 transitions. [2020-10-27 10:11:17,056 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 633 transitions. Word has length 61 [2020-10-27 10:11:17,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:11:17,057 INFO L481 AbstractCegarLoop]: Abstraction has 496 states and 633 transitions. [2020-10-27 10:11:17,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 10:11:17,057 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 633 transitions. [2020-10-27 10:11:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-27 10:11:17,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:11:17,066 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-10-27 10:11:17,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 10:11:17,067 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:11:17,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:11:17,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1034348468, now seen corresponding path program 1 times [2020-10-27 10:11:17,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:11:17,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957626206] [2020-10-27 10:11:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:11:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:17,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:17,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:17,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:17,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:19,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:19,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-27 10:11:22,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 10:11:22,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-27 10:11:22,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:11:22,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 10:11:22,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 10:11:22,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,330 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 10:11:22,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:22,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 10:11:22,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:22,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:11:22,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:22,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:22,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 10:11:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:22,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:22,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:11:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:22,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:11:22,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:22,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:22,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:11:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:22,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:11:22,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:11:22,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:11:22,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:11:22,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 10:11:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:23,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:23,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:23,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 10:11:23,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:11:23,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-27 10:11:23,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:11:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 10:11:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:11:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:23,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:23,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:23,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:23,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:23,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:23,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:23,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:23,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:11:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:23,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:23,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:23,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:23,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:23,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 10:11:23,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:11:23,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-27 10:11:23,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:11:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:11:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:23,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:11:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-27 10:11:24,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 10:11:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 10:11:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:24,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 10:11:24,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:11:24,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:24,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 10:11:24,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:24,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:24,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:24,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:11:24,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:24,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:24,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:11:24,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:11:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:11:24,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:11:24,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:11:24,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 10:11:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:24,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:24,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:24,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:24,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:24,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:24,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:11:24,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 10:11:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:24,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:24,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:24,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:24,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:24,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:24,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:11:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:24,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 10:11:24,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957626206] [2020-10-27 10:11:24,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:11:24,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 10:11:24,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22737876] [2020-10-27 10:11:24,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 10:11:24,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:11:24,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 10:11:24,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-10-27 10:11:24,490 INFO L87 Difference]: Start difference. First operand 496 states and 633 transitions. Second operand 19 states. [2020-10-27 10:11:24,659 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 10:11:25,432 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 10:11:25,646 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 10:11:55,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:11:55,921 INFO L93 Difference]: Finished difference Result 1013 states and 1314 transitions. [2020-10-27 10:11:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 10:11:55,923 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 119 [2020-10-27 10:11:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:11:55,936 INFO L225 Difference]: With dead ends: 1013 [2020-10-27 10:11:55,936 INFO L226 Difference]: Without dead ends: 535 [2020-10-27 10:11:55,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=141, Invalid=915, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 10:11:55,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2020-10-27 10:11:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 497. [2020-10-27 10:11:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-10-27 10:11:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 629 transitions. [2020-10-27 10:11:56,047 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 629 transitions. Word has length 119 [2020-10-27 10:11:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:11:56,050 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 629 transitions. [2020-10-27 10:11:56,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 10:11:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 629 transitions. [2020-10-27 10:11:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 10:11:56,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:11:56,057 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-10-27 10:11:56,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 10:11:56,057 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:11:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:11:56,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1523154314, now seen corresponding path program 1 times [2020-10-27 10:11:56,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:11:56,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436326061] [2020-10-27 10:11:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:11:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:56,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:56,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-27 10:11:56,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:11:56,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-27 10:11:56,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 10:11:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:11:56,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:56,851 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 10:11:56,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:56,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:56,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:56,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:56,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 10:11:56,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:56,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:56,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:56,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:56,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:56,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:11:56,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:56,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:56,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:56,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:56,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:56,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:56,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:56,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:56,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:56,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:56,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:56,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:56,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:56,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:56,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:56,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:56,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:56,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:56,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:56,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:56,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:11:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:56,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:56,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:56,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:56,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:56,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:56,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:56,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:56,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:56,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:56,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:56,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:56,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:57,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:11:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:11:57,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:11:57,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:11:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:11:57,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 10:11:57,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:11:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:57,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:57,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:11:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:11:57,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 10:11:57,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:11:57,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 10:11:57,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:57,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:57,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:57,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:57,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:57,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:57,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:11:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:11:57,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:11:57,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:57,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:11:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:57,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:11:57,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:57,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 10:11:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:57,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:57,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:57,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:57,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:57,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 10:11:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:57,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:57,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:57,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:57,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:57,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:57,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:11:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 10:11:57,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436326061] [2020-10-27 10:11:57,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:11:57,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 10:11:57,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077172511] [2020-10-27 10:11:57,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 10:11:57,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:11:57,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 10:11:57,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-27 10:11:57,516 INFO L87 Difference]: Start difference. First operand 497 states and 629 transitions. Second operand 11 states. [2020-10-27 10:11:57,676 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 10:11:57,945 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 10:11:58,186 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 10:12:06,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:12:06,763 INFO L93 Difference]: Finished difference Result 1127 states and 1450 transitions. [2020-10-27 10:12:06,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 10:12:06,764 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2020-10-27 10:12:06,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:12:06,773 INFO L225 Difference]: With dead ends: 1127 [2020-10-27 10:12:06,773 INFO L226 Difference]: Without dead ends: 652 [2020-10-27 10:12:06,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-27 10:12:06,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-10-27 10:12:06,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 571. [2020-10-27 10:12:06,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-27 10:12:06,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 728 transitions. [2020-10-27 10:12:06,869 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 728 transitions. Word has length 126 [2020-10-27 10:12:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:12:06,870 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 728 transitions. [2020-10-27 10:12:06,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 10:12:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 728 transitions. [2020-10-27 10:12:06,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-27 10:12:06,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:12:06,882 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-27 10:12:06,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 10:12:06,882 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:12:06,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:12:06,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1648595519, now seen corresponding path program 1 times [2020-10-27 10:12:06,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:12:06,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39502173] [2020-10-27 10:12:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:12:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 10:12:07,000 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 10:12:07,001 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 10:12:07,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 10:12:07,020 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-27 10:12:07,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:12:07 BoogieIcfgContainer [2020-10-27 10:12:07,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 10:12:07,072 INFO L168 Benchmark]: Toolchain (without parser) took 75628.42 ms. Allocated memory was 156.2 MB in the beginning and 433.1 MB in the end (delta: 276.8 MB). Free memory was 123.5 MB in the beginning and 136.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 265.7 MB. Max. memory is 8.0 GB. [2020-10-27 10:12:07,073 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 128.7 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 10:12:07,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1380.88 ms. Allocated memory is still 156.2 MB. Free memory was 122.8 MB in the beginning and 66.3 MB in the end (delta: 56.5 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. [2020-10-27 10:12:07,075 INFO L168 Benchmark]: Boogie Preprocessor took 234.81 ms. Allocated memory is still 156.2 MB. Free memory was 66.3 MB in the beginning and 59.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-27 10:12:07,075 INFO L168 Benchmark]: RCFGBuilder took 2956.56 ms. Allocated memory was 156.2 MB in the beginning and 299.9 MB in the end (delta: 143.7 MB). Free memory was 59.5 MB in the beginning and 232.6 MB in the end (delta: -173.2 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. [2020-10-27 10:12:07,079 INFO L168 Benchmark]: TraceAbstraction took 71043.67 ms. Allocated memory was 299.9 MB in the beginning and 433.1 MB in the end (delta: 133.2 MB). Free memory was 232.1 MB in the beginning and 136.1 MB in the end (delta: 96.0 MB). Peak memory consumption was 229.7 MB. Max. memory is 8.0 GB. [2020-10-27 10:12:07,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 128.7 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1380.88 ms. Allocated memory is still 156.2 MB. Free memory was 122.8 MB in the beginning and 66.3 MB in the end (delta: 56.5 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 234.81 ms. Allocated memory is still 156.2 MB. Free memory was 66.3 MB in the beginning and 59.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2956.56 ms. Allocated memory was 156.2 MB in the beginning and 299.9 MB in the end (delta: 143.7 MB). Free memory was 59.5 MB in the beginning and 232.6 MB in the end (delta: -173.2 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 71043.67 ms. Allocated memory was 299.9 MB in the beginning and 433.1 MB in the end (delta: 133.2 MB). Free memory was 232.1 MB in the beginning and 136.1 MB in the end (delta: 96.0 MB). Peak memory consumption was 229.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 5457. Possible FailurePath: [L5355] int ldv_state_variable_1 ; [L5356] int LDV_IN_INTERRUPT = 1; [L5357] struct archdr *rfc1051_proto_group0 ; [L5358] int ref_cnt ; [L5359] int ldv_state_variable_0 ; [L5360] struct net_device *rfc1051_proto_group1 ; [L5379-L5382] static struct ArcProto rfc1051_proto = {115, 507, 1, & rx, & build_header, & prepare_tx, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , int ))0}; [L5565] int ldv_retval_0 ; [L5761] Element set_impl[15] ; [L5762] int last_index = 0; [L5896] Set LDV_SKBS ; [L5582] int ldvarg1 ; [L5583] int tmp ; [L5584] unsigned short ldvarg4 ; [L5585] unsigned short tmp___0 ; [L5586] struct sk_buff *ldvarg3 ; [L5587] void *tmp___1 ; [L5588] int ldvarg0 ; [L5589] int tmp___2 ; [L5590] int ldvarg5 ; [L5591] int tmp___3 ; [L5592] uint8_t ldvarg2 ; [L5593] int ldvarg6 ; [L5594] int tmp___4 ; [L5595] int tmp___5 ; [L5596] int tmp___6 ; [L5597] int tmp___7 ; [L5599] tmp = __VERIFIER_nondet_int() [L5600] ldvarg1 = tmp [L5601] tmp___0 = __VERIFIER_nondet_ushort() [L5602] ldvarg4 = tmp___0 [L5603] CALL, EXPR ldv_successful_zalloc(232UL) [L5274] EXPR, FCALL calloc(1UL, __size) [L5274] void *p = calloc(1UL, __size); [L5275] CALL assume_abort_if_not(p != (void *)0) [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) [L5276] return p; [L5603] RET, EXPR ldv_successful_zalloc(232UL) [L5603] tmp___1 = ldv_successful_zalloc(232UL) [L5604] ldvarg3 = (struct sk_buff *)tmp___1 [L5605] tmp___2 = __VERIFIER_nondet_int() [L5606] ldvarg0 = tmp___2 [L5607] tmp___3 = __VERIFIER_nondet_int() [L5608] ldvarg5 = tmp___3 [L5609] tmp___4 = __VERIFIER_nondet_int() [L5610] ldvarg6 = tmp___4 [L5611] CALL ldv_initialize() [L5915] CALL ldv_set_init(LDV_SKBS) [L5767] set = set_impl [L5768] last_index = 0 [L5915] RET ldv_set_init(LDV_SKBS) [L5611] RET ldv_initialize() [L5612] FCALL memset((void *)(& ldvarg2), 0, 1UL) [L5613] ldv_state_variable_1 = 0 [L5614] ref_cnt = 0 [L5615] ldv_state_variable_0 = 1 [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: [L5651] case 1: [L5652] COND TRUE ldv_state_variable_0 != 0 [L5653] tmp___7 = __VERIFIER_nondet_int() [L5655] case 0: [L5663] case 1: [L5664] COND TRUE ldv_state_variable_0 == 1 [L5665] CALL, EXPR arcnet_rfc1051_init() [L5387] arc_proto_map[241] = & rfc1051_proto [L5388] EXPR arc_proto_map[241] [L5388] arc_proto_map[240] = arc_proto_map[241] [L5389] COND TRUE (unsigned long )arc_bcast_proto == (unsigned long )arc_proto_default [L5390] arc_bcast_proto = & rfc1051_proto [L5393] return (0); [L5665] RET, EXPR arcnet_rfc1051_init() [L5665] ldv_retval_0 = arcnet_rfc1051_init() [L5666] COND TRUE ldv_retval_0 == 0 [L5667] ldv_state_variable_0 = 3 [L5668] ldv_state_variable_1 = 1 [L5669] CALL ldv_initialize_ArcProto_1() [L5570] void *tmp ; [L5571] void *tmp___0 ; [L5573] CALL, EXPR ldv_successful_zalloc(20UL) [L5274] EXPR, FCALL calloc(1UL, __size) [L5274] void *p = calloc(1UL, __size); [L5275] CALL assume_abort_if_not(p != (void *)0) [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) [L5276] return p; [L5573] RET, EXPR ldv_successful_zalloc(20UL) [L5573] tmp = ldv_successful_zalloc(20UL) [L5574] rfc1051_proto_group0 = (struct archdr *)tmp [L5575] CALL, EXPR ldv_successful_zalloc(3264UL) [L5274] EXPR, FCALL calloc(1UL, __size) [L5274] void *p = calloc(1UL, __size); [L5275] CALL assume_abort_if_not(p != (void *)0) [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) [L5276] return p; [L5575] RET, EXPR ldv_successful_zalloc(3264UL) [L5575] tmp___0 = ldv_successful_zalloc(3264UL) [L5576] rfc1051_proto_group1 = (struct net_device *)tmp___0 [L5669] RET ldv_initialize_ArcProto_1() [L5672] COND FALSE !(ldv_retval_0 != 0) [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: [L5620] COND TRUE ldv_state_variable_1 != 0 [L5621] tmp___6 = __VERIFIER_nondet_int() [L5623] case 0: [L5630] case 1: [L5637] case 2: [L5638] COND TRUE ldv_state_variable_1 == 1 [L5639] CALL rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5439] struct arcnet_local *lp ; [L5440] void *tmp ; [L5441] struct sk_buff *skb ; [L5442] struct archdr *pkt ; [L5443] int ofs ; [L5444] size_t __len ; [L5445] void *__ret ; [L5447] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5365] return ((void *)dev + 3264U); [L5447] RET, EXPR netdev_priv((struct net_device const *)dev) [L5447] tmp = netdev_priv((struct net_device const *)dev) [L5448] lp = (struct arcnet_local *)tmp [L5449] pkt = pkthdr [L5450] COND FALSE !(length > 256) [L5453] ofs = 256 - length [L5455] CALL, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5741] struct sk_buff *tmp ; [L5743] CALL, EXPR ldv_skb_alloc() [L5899] void *skb ; [L5900] void *tmp___7 ; [L5902] CALL, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5274] EXPR, FCALL calloc(1UL, __size) [L5274] void *p = calloc(1UL, __size); [L5275] CALL assume_abort_if_not(p != (void *)0) [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) [L5276] return p; [L5902] RET, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5902] tmp___7 = ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5903] skb = (struct sk_buff___0 *)tmp___7 [L5904] COND FALSE !(! skb) [L5907] CALL ldv_set_add(LDV_SKBS, skb) [L5775] int i ; [L5777] i = 0 [L5778] COND TRUE 1 [L5779] COND FALSE !(i < last_index) [L5789] COND TRUE last_index < 15 [L5790] set_impl[last_index] = e [L5791] last_index = last_index + 1 [L5907] RET ldv_set_add(LDV_SKBS, skb) [L5908] return (skb); [L5743] RET, EXPR ldv_skb_alloc() [L5743] tmp = ldv_skb_alloc() [L5744] COND TRUE \read(*tmp) [L5746] CALL, EXPR ldv_malloc(size) [L5280] void *p ; [L5281] void *tmp ; [L5282] int tmp___0 ; [L5284] tmp___0 = __VERIFIER_nondet_int() [L5285] COND TRUE tmp___0 != 0 [L5286] return ((void *)0); [L5746] RET, EXPR ldv_malloc(size) [L5746] tmp->head = ldv_malloc(size) [L5747] EXPR tmp->head [L5747] tmp->data = tmp->head [L5749] return (tmp); [L5455] RET, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5455] skb = ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5456] COND TRUE (unsigned long )skb == (unsigned long )((struct sk_buff *)0) [L5457] COND TRUE arcnet_debug & 1 [L5461] EXPR dev->stats.rx_dropped [L5461] dev->stats.rx_dropped = dev->stats.rx_dropped + 1UL [L5639] RET rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5640] ldv_state_variable_1 = 1 [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: [L5651] case 1: [L5652] COND TRUE ldv_state_variable_0 != 0 [L5653] tmp___7 = __VERIFIER_nondet_int() [L5655] case 0: [L5656] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L5657] CALL arcnet_rfc1051_exit() [L5399] FCALL arcnet_unregister_proto(& rfc1051_proto) [L5657] RET arcnet_rfc1051_exit() [L5658] ldv_state_variable_0 = 2 [L5693] CALL ldv_check_final_state() [L5966] int tmp___7 ; [L5968] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L5857] return (last_index == 0); [L5968] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L5968] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L5969] COND FALSE !(\read(tmp___7)) [L5971] CALL ldv_error() [L5332] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 58 procedures, 362 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 70.9s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 58.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 848 SDtfs, 1873 SDslu, 3155 SDs, 0 SdLazy, 5116 SolverSat, 1137 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 52.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 168 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 484 NumberOfCodeBlocks, 484 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 107736 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 33/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...