/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=BIGGEST --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 -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 0.1.25-adbd35c [2020-10-13 00:41:19,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 00:41:19,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 00:41:20,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 00:41:20,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 00:41:20,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 00:41:20,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 00:41:20,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 00:41:20,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 00:41:20,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 00:41:20,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 00:41:20,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 00:41:20,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 00:41:20,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 00:41:20,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 00:41:20,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 00:41:20,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 00:41:20,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 00:41:20,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 00:41:20,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 00:41:20,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 00:41:20,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 00:41:20,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 00:41:20,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 00:41:20,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 00:41:20,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 00:41:20,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 00:41:20,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 00:41:20,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 00:41:20,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 00:41:20,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 00:41:20,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 00:41:20,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 00:41:20,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 00:41:20,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 00:41:20,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 00:41:20,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 00:41:20,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 00:41:20,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 00:41:20,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 00:41:20,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 00:41:20,081 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 [2020-10-13 00:41:20,102 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 00:41:20,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 00:41:20,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 00:41:20,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 00:41:20,104 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 00:41:20,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 00:41:20,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 00:41:20,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 00:41:20,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 00:41:20,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 00:41:20,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 00:41:20,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 00:41:20,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 00:41:20,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 00:41:20,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 00:41:20,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 00:41:20,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 00:41:20,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 00:41:20,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 00:41:20,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 00:41:20,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 00:41:20,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 00:41:20,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 00:41:20,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 00:41:20,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 00:41:20,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 00:41:20,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 00:41:20,108 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 00:41:20,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 00:41:20,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 00:41:20,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 00:41:20,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 00:41:20,427 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 00:41:20,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2020-10-13 00:41:20,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7148db94/c45ddbd3a295426c943b0a4c03fac75c/FLAGeb431d82c [2020-10-13 00:41:21,221 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 00:41:21,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2020-10-13 00:41:21,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7148db94/c45ddbd3a295426c943b0a4c03fac75c/FLAGeb431d82c [2020-10-13 00:41:21,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7148db94/c45ddbd3a295426c943b0a4c03fac75c [2020-10-13 00:41:21,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 00:41:21,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 00:41:21,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 00:41:21,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 00:41:21,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 00:41:21,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:21" (1/1) ... [2020-10-13 00:41:21,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ec548f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:21, skipping insertion in model container [2020-10-13 00:41:21,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:21" (1/1) ... [2020-10-13 00:41:21,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 00:41:21,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 00:41:23,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:41:23,136 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 00:41:23,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:41:23,464 INFO L208 MainTranslator]: Completed translation [2020-10-13 00:41:23,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23 WrapperNode [2020-10-13 00:41:23,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 00:41:23,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 00:41:23,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 00:41:23,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 00:41:23,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (1/1) ... [2020-10-13 00:41:23,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (1/1) ... [2020-10-13 00:41:23,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (1/1) ... [2020-10-13 00:41:23,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (1/1) ... [2020-10-13 00:41:23,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (1/1) ... [2020-10-13 00:41:23,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (1/1) ... [2020-10-13 00:41:23,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (1/1) ... [2020-10-13 00:41:23,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 00:41:23,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 00:41:23,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 00:41:23,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 00:41:23,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (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 [2020-10-13 00:41:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 00:41:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 00:41:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-13 00:41:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-13 00:41:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 00:41:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-10-13 00:41:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 00:41:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 00:41:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 00:41:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 00:41:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 00:41:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 00:41:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 00:41:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 00:41:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-13 00:41:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_init [2020-10-13 00:41:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_exit [2020-10-13 00:41:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2020-10-13 00:41:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2020-10-13 00:41:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2020-10-13 00:41:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2020-10-13 00:41:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2020-10-13 00:41:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 00:41:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-13 00:41:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-13 00:41:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-13 00:41:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-13 00:41:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-13 00:41:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2020-10-13 00:41:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2020-10-13 00:41:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2020-10-13 00:41:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-13 00:41:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 00:41:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-13 00:41:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-13 00:41:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-13 00:41:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 00:41:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 00:41:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 00:41:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 00:41:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-13 00:41:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 00:41:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-13 00:41:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-13 00:41:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-13 00:41:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-13 00:41:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-13 00:41:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 00:41:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2020-10-13 00:41:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 00:41:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 00:41:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-13 00:41:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 00:41:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 00:41:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 00:41:23,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 00:41:23,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 00:41:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 00:41:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 00:41:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 00:41:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 00:41:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 00:41:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-13 00:41:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-13 00:41:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-13 00:41:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-13 00:41:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2020-10-13 00:41:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-13 00:41:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2020-10-13 00:41:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 00:41:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-13 00:41:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 00:41:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-13 00:41:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 00:41:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 00:41:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-13 00:41:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-13 00:41:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-13 00:41:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 00:41:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 00:41:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 00:41:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-13 00:41:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 00:41:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 00:41:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 00:41:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-10-13 00:41:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 00:41:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 00:41:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 00:41:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 00:41:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 00:41:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 00:41:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 00:41:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 00:41:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2020-10-13 00:41:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2020-10-13 00:41:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_init [2020-10-13 00:41:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 00:41:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 00:41:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_exit [2020-10-13 00:41:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 00:41:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 00:41:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-13 00:41:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 00:41:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 00:41:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 00:41:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 00:41:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 00:41:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-13 00:41:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 00:41:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-13 00:41:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-13 00:41:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-13 00:41:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 00:41:23,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 00:41:23,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 00:41:23,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 00:41:23,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-13 00:41:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-13 00:41:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-13 00:41:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 00:41:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 00:41:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 00:41:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 00:41:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 00:41:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 00:41:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 00:41:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 00:41:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 00:41:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 00:41:24,433 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 00:41:26,318 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 00:41:26,319 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 00:41:26,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:26 BoogieIcfgContainer [2020-10-13 00:41:26,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 00:41:26,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 00:41:26,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 00:41:26,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 00:41:26,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:41:21" (1/3) ... [2020-10-13 00:41:26,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38429571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:26, skipping insertion in model container [2020-10-13 00:41:26,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:23" (2/3) ... [2020-10-13 00:41:26,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38429571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:26, skipping insertion in model container [2020-10-13 00:41:26,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:26" (3/3) ... [2020-10-13 00:41:26,334 INFO L109 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 [2020-10-13 00:41:26,346 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 00:41:26,356 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 00:41:26,372 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 00:41:26,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 00:41:26,401 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 00:41:26,401 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 00:41:26,402 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 00:41:26,402 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 00:41:26,402 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 00:41:26,402 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 00:41:26,402 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 00:41:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-10-13 00:41:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-13 00:41:26,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:41:26,441 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] [2020-10-13 00:41:26,442 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:41:26,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:41:26,449 INFO L82 PathProgramCache]: Analyzing trace with hash -953861834, now seen corresponding path program 1 times [2020-10-13 00:41:26,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:41:26,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733128509] [2020-10-13 00:41:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:41:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:26,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:26,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:27,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:27,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:28,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:28,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 00:41:28,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 00:41:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2153 [2020-10-13 00:41:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:41:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 00:41:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 00:41:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 00:41:29,156 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 00:41:29,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:41:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:29,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 00:41:29,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:29,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:41:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:41:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 00:41:29,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:41:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 00:41:29,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 00:41:29,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:29,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:41:29,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:41:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:29,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:41:29,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:29,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:41:29,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:41:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:41:29,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:41:29,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 00:41:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:41:29,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 00:41:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:41:29,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 00:41:29,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:41:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:41:29,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:41:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:41:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:29,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 00:41:29,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:41:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:41:29,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 00:41:29,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 00:41:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:41:29,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:41:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 00:41:29,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 00:41:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 00:41:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:41:29,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:29,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 00:41:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:41:29,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:41:29,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:41:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 00:41:29,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:29,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:41:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:29,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:41:29,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:29,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:29,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:29,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:29,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 00:41:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:29,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:29,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:29,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:29,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:29,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 00:41:29,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:29,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:41:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:29,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:41:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 00:41:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 00:41:29,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733128509] [2020-10-13 00:41:29,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:41:29,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 00:41:29,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361009178] [2020-10-13 00:41:29,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 00:41:29,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:41:29,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 00:41:29,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-13 00:41:29,780 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 13 states. [2020-10-13 00:41:29,928 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 00:41:30,154 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 00:41:30,641 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 00:41:30,769 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 00:41:31,659 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-13 00:41:39,393 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 00:41:39,561 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 00:41:50,834 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 00:41:53,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:41:53,033 INFO L93 Difference]: Finished difference Result 836 states and 1146 transitions. [2020-10-13 00:41:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 00:41:53,035 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2020-10-13 00:41:53,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:41:53,056 INFO L225 Difference]: With dead ends: 836 [2020-10-13 00:41:53,056 INFO L226 Difference]: Without dead ends: 541 [2020-10-13 00:41:53,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2020-10-13 00:41:53,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2020-10-13 00:41:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 495. [2020-10-13 00:41:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-10-13 00:41:53,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 632 transitions. [2020-10-13 00:41:53,198 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 632 transitions. Word has length 59 [2020-10-13 00:41:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:41:53,199 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 632 transitions. [2020-10-13 00:41:53,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 00:41:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 632 transitions. [2020-10-13 00:41:53,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 00:41:53,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:41:53,209 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] [2020-10-13 00:41:53,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 00:41:53,209 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:41:53,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:41:53,210 INFO L82 PathProgramCache]: Analyzing trace with hash -447833750, now seen corresponding path program 1 times [2020-10-13 00:41:53,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:41:53,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351084767] [2020-10-13 00:41:53,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:41:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:53,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:53,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:53,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:53,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:53,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:57,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 00:41:58,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 00:41:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-13 00:41:58,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 00:41:58,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 00:41:58,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 00:41:58,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:41:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:58,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:58,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 00:41:58,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:41:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 00:41:58,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 00:41:58,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:58,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:41:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:58,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:58,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:41:58,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:58,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:41:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:41:58,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:41:58,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:58,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 00:41:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:41:58,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:41:58,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:41:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:58,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:58,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:41:58,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:58,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:58,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 00:41:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 00:41:58,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:41:58,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:58,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 00:41:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:58,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:58,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:59,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:59,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 00:41:59,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:41:59,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 932 [2020-10-13 00:41:59,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 00:41:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 00:41:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 00:41:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:41:59,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:41:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:41:59,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:41:59,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:41:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:41:59,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:41:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:41:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:41:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:41:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:41:59,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 00:41:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:41:59,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:59,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:41:59,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:00,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:00,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 00:42:00,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:42:00,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-13 00:42:00,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:00,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 00:42:00,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 00:42:00,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 00:42:00,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:00,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:00,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:00,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:00,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 00:42:00,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:42:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-13 00:42:00,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 00:42:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 00:42:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:00,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:00,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:00,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:00,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:00,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 00:42:00,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:42:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 00:42:00,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 00:42:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:00,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 00:42:00,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:42:00,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:00,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:00,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:00,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:00,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:42:00,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:01,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:01,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:42:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:01,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:01,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:01,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:42:01,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:01,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:42:01,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:42:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:01,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 00:42:01,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:01,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:42:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:01,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:01,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:01,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 00:42:01,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 00:42:01,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:01,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:42:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 00:42:01,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:01,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 00:42:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:01,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:01,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:01,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:42:01,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:01,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:42:01,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 00:42:01,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:01,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:42:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:01,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:01,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:01,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:42:01,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:01,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 00:42:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:01,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:01,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:01,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:01,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:01,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:42:01,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:42:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:01,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 00:42:01,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351084767] [2020-10-13 00:42:01,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:42:01,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 00:42:01,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716809538] [2020-10-13 00:42:01,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 00:42:01,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:42:01,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 00:42:01,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-13 00:42:01,235 INFO L87 Difference]: Start difference. First operand 495 states and 632 transitions. Second operand 18 states. [2020-10-13 00:42:01,788 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 00:42:01,947 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 00:42:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:42:29,375 INFO L93 Difference]: Finished difference Result 1006 states and 1306 transitions. [2020-10-13 00:42:29,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 00:42:29,376 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 118 [2020-10-13 00:42:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:42:29,381 INFO L225 Difference]: With dead ends: 1006 [2020-10-13 00:42:29,382 INFO L226 Difference]: Without dead ends: 533 [2020-10-13 00:42:29,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2020-10-13 00:42:29,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-10-13 00:42:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 495. [2020-10-13 00:42:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-10-13 00:42:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 627 transitions. [2020-10-13 00:42:29,447 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 627 transitions. Word has length 118 [2020-10-13 00:42:29,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:42:29,448 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 627 transitions. [2020-10-13 00:42:29,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 00:42:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 627 transitions. [2020-10-13 00:42:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 00:42:29,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:42:29,456 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] [2020-10-13 00:42:29,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 00:42:29,456 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:42:29,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:42:29,457 INFO L82 PathProgramCache]: Analyzing trace with hash -475672057, now seen corresponding path program 1 times [2020-10-13 00:42:29,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:42:29,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825954993] [2020-10-13 00:42:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:42:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:29,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:29,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 00:42:30,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:42:30,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-13 00:42:30,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:42:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 00:42:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 00:42:30,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,163 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 00:42:30,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:42:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:30,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 00:42:30,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:42:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 00:42:30,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 00:42:30,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:30,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:42:30,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:42:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:42:30,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 00:42:30,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 00:42:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:42:30,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:42:30,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:42:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:30,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 00:42:30,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 00:42:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 00:42:30,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:42:30,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 00:42:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 00:42:30,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 00:42:30,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 00:42:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:30,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:42:30,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 00:42:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 00:42:30,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 00:42:30,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 00:42:30,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 00:42:30,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 00:42:30,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:42:30,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:42:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:30,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:42:30,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:42:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:42:30,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:42:30,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:42:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 00:42:30,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:42:30,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 00:42:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:42:30,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:42:30,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 00:42:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:42:30,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:42:30,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 00:42:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:42:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:30,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:42:30,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:42:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 00:42:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:42:30,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:42:30,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:42:30,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:42:30,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:42:30,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:42:30,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:42:30,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:42:30,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:42:30,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:42:30,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:42:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 00:42:30,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825954993] [2020-10-13 00:42:30,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:42:30,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 00:42:30,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623206101] [2020-10-13 00:42:30,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 00:42:30,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:42:30,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 00:42:30,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 00:42:30,693 INFO L87 Difference]: Start difference. First operand 495 states and 627 transitions. Second operand 11 states. [2020-10-13 00:42:30,854 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 00:42:31,021 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 00:42:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:42:44,750 INFO L93 Difference]: Finished difference Result 1145 states and 1480 transitions. [2020-10-13 00:42:44,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 00:42:44,751 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 124 [2020-10-13 00:42:44,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:42:44,756 INFO L225 Difference]: With dead ends: 1145 [2020-10-13 00:42:44,756 INFO L226 Difference]: Without dead ends: 672 [2020-10-13 00:42:44,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-13 00:42:44,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-10-13 00:42:44,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 569. [2020-10-13 00:42:44,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-10-13 00:42:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 726 transitions. [2020-10-13 00:42:44,832 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 726 transitions. Word has length 124 [2020-10-13 00:42:44,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:42:44,833 INFO L479 AbstractCegarLoop]: Abstraction has 569 states and 726 transitions. [2020-10-13 00:42:44,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 00:42:44,834 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 726 transitions. [2020-10-13 00:42:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 00:42:44,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:42:44,843 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] [2020-10-13 00:42:44,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 00:42:44,845 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:42:44,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:42:44,846 INFO L82 PathProgramCache]: Analyzing trace with hash 2097619666, now seen corresponding path program 1 times [2020-10-13 00:42:44,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:42:44,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43813310] [2020-10-13 00:42:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:42:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 00:42:44,953 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 00:42:44,954 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 00:42:44,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 00:42:44,973 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-13 00:42:45,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:42:45 BoogieIcfgContainer [2020-10-13 00:42:45,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 00:42:45,018 INFO L168 Benchmark]: Toolchain (without parser) took 83221.28 ms. Allocated memory was 137.4 MB in the beginning and 669.5 MB in the end (delta: 532.2 MB). Free memory was 92.8 MB in the beginning and 167.2 MB in the end (delta: -74.4 MB). Peak memory consumption was 457.7 MB. Max. memory is 7.1 GB. [2020-10-13 00:42:45,019 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 00:42:45,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1673.26 ms. Allocated memory was 137.4 MB in the beginning and 205.5 MB in the end (delta: 68.2 MB). Free memory was 92.6 MB in the beginning and 108.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. [2020-10-13 00:42:45,021 INFO L168 Benchmark]: Boogie Preprocessor took 212.23 ms. Allocated memory is still 205.5 MB. Free memory was 108.8 MB in the beginning and 102.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2020-10-13 00:42:45,022 INFO L168 Benchmark]: RCFGBuilder took 2644.83 ms. Allocated memory was 205.5 MB in the beginning and 267.9 MB in the end (delta: 62.4 MB). Free memory was 102.6 MB in the beginning and 134.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2020-10-13 00:42:45,025 INFO L168 Benchmark]: TraceAbstraction took 78685.31 ms. Allocated memory was 267.9 MB in the beginning and 669.5 MB in the end (delta: 401.6 MB). Free memory was 134.2 MB in the beginning and 167.2 MB in the end (delta: -33.0 MB). Peak memory consumption was 368.6 MB. Max. memory is 7.1 GB. [2020-10-13 00:42:45,037 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1673.26 ms. Allocated memory was 137.4 MB in the beginning and 205.5 MB in the end (delta: 68.2 MB). Free memory was 92.6 MB in the beginning and 108.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 212.23 ms. Allocated memory is still 205.5 MB. Free memory was 108.8 MB in the beginning and 102.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2644.83 ms. Allocated memory was 205.5 MB in the beginning and 267.9 MB in the end (delta: 62.4 MB). Free memory was 102.6 MB in the beginning and 134.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 78685.31 ms. Allocated memory was 267.9 MB in the beginning and 669.5 MB in the end (delta: 401.6 MB). Free memory was 134.2 MB in the beginning and 167.2 MB in the end (delta: -33.0 MB). Peak memory consumption was 368.6 MB. Max. memory is 7.1 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: 5321]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 5446. Possible FailurePath: [L5344] int ldv_state_variable_1 ; [L5345] int LDV_IN_INTERRUPT = 1; [L5346] struct archdr *rfc1051_proto_group0 ; [L5347] int ref_cnt ; [L5348] int ldv_state_variable_0 ; [L5349] struct net_device *rfc1051_proto_group1 ; [L5368-L5371] 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}; [L5554] int ldv_retval_0 ; [L5750] Element set_impl[15] ; [L5751] int last_index = 0; [L5885] Set LDV_SKBS ; [L5571] int ldvarg1 ; [L5572] int tmp ; [L5573] unsigned short ldvarg4 ; [L5574] unsigned short tmp___0 ; [L5575] struct sk_buff *ldvarg3 ; [L5576] void *tmp___1 ; [L5577] int ldvarg0 ; [L5578] int tmp___2 ; [L5579] int ldvarg5 ; [L5580] int tmp___3 ; [L5581] uint8_t ldvarg2 ; [L5582] int ldvarg6 ; [L5583] int tmp___4 ; [L5584] int tmp___5 ; [L5585] int tmp___6 ; [L5586] int tmp___7 ; [L5588] tmp = __VERIFIER_nondet_int() [L5589] ldvarg1 = tmp [L5590] tmp___0 = __VERIFIER_nondet_ushort() [L5591] ldvarg4 = tmp___0 [L5592] CALL, EXPR ldv_successful_zalloc(232UL) [L5263] EXPR, FCALL calloc(1UL, __size) [L5263] void *p = calloc(1UL, __size); [L5264] CALL assume_abort_if_not(p != (void *)0) [L5260] COND FALSE !(!cond) [L5264] RET assume_abort_if_not(p != (void *)0) [L5265] return p; [L5592] RET, EXPR ldv_successful_zalloc(232UL) [L5592] tmp___1 = ldv_successful_zalloc(232UL) [L5593] ldvarg3 = (struct sk_buff *)tmp___1 [L5594] tmp___2 = __VERIFIER_nondet_int() [L5595] ldvarg0 = tmp___2 [L5596] tmp___3 = __VERIFIER_nondet_int() [L5597] ldvarg5 = tmp___3 [L5598] tmp___4 = __VERIFIER_nondet_int() [L5599] ldvarg6 = tmp___4 [L5600] CALL ldv_initialize() [L5904] CALL ldv_set_init(LDV_SKBS) [L5756] set = set_impl [L5757] last_index = 0 [L5904] RET ldv_set_init(LDV_SKBS) [L5600] RET ldv_initialize() [L5601] FCALL memset((void *)(& ldvarg2), 0, 1UL) [L5602] ldv_state_variable_1 = 0 [L5603] ref_cnt = 0 [L5604] ldv_state_variable_0 = 1 [L5606] tmp___5 = __VERIFIER_nondet_int() [L5608] case 0: [L5640] case 1: [L5641] COND TRUE ldv_state_variable_0 != 0 [L5642] tmp___7 = __VERIFIER_nondet_int() [L5644] case 0: [L5652] case 1: [L5653] COND TRUE ldv_state_variable_0 == 1 [L5654] CALL, EXPR arcnet_rfc1051_init() [L5376] arc_proto_map[241] = & rfc1051_proto [L5377] EXPR arc_proto_map[241] [L5377] arc_proto_map[240] = arc_proto_map[241] [L5378] COND TRUE (unsigned long )arc_bcast_proto == (unsigned long )arc_proto_default [L5379] arc_bcast_proto = & rfc1051_proto [L5382] return (0); [L5654] RET, EXPR arcnet_rfc1051_init() [L5654] ldv_retval_0 = arcnet_rfc1051_init() [L5655] COND TRUE ldv_retval_0 == 0 [L5656] ldv_state_variable_0 = 3 [L5657] ldv_state_variable_1 = 1 [L5658] CALL ldv_initialize_ArcProto_1() [L5559] void *tmp ; [L5560] void *tmp___0 ; [L5562] CALL, EXPR ldv_successful_zalloc(20UL) [L5263] EXPR, FCALL calloc(1UL, __size) [L5263] void *p = calloc(1UL, __size); [L5264] CALL assume_abort_if_not(p != (void *)0) [L5260] COND FALSE !(!cond) [L5264] RET assume_abort_if_not(p != (void *)0) [L5265] return p; [L5562] RET, EXPR ldv_successful_zalloc(20UL) [L5562] tmp = ldv_successful_zalloc(20UL) [L5563] rfc1051_proto_group0 = (struct archdr *)tmp [L5564] CALL, EXPR ldv_successful_zalloc(3264UL) [L5263] EXPR, FCALL calloc(1UL, __size) [L5263] void *p = calloc(1UL, __size); [L5264] CALL assume_abort_if_not(p != (void *)0) [L5260] COND FALSE !(!cond) [L5264] RET assume_abort_if_not(p != (void *)0) [L5265] return p; [L5564] RET, EXPR ldv_successful_zalloc(3264UL) [L5564] tmp___0 = ldv_successful_zalloc(3264UL) [L5565] rfc1051_proto_group1 = (struct net_device *)tmp___0 [L5658] RET ldv_initialize_ArcProto_1() [L5661] COND FALSE !(ldv_retval_0 != 0) [L5606] tmp___5 = __VERIFIER_nondet_int() [L5608] case 0: [L5609] COND TRUE ldv_state_variable_1 != 0 [L5610] tmp___6 = __VERIFIER_nondet_int() [L5612] case 0: [L5619] case 1: [L5626] case 2: [L5627] COND TRUE ldv_state_variable_1 == 1 [L5628] CALL rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5428] struct arcnet_local *lp ; [L5429] void *tmp ; [L5430] struct sk_buff *skb ; [L5431] struct archdr *pkt ; [L5432] int ofs ; [L5433] size_t __len ; [L5434] void *__ret ; [L5436] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5354] return ((void *)dev + 3264U); [L5436] RET, EXPR netdev_priv((struct net_device const *)dev) [L5436] tmp = netdev_priv((struct net_device const *)dev) [L5437] lp = (struct arcnet_local *)tmp [L5438] pkt = pkthdr [L5439] COND TRUE length > 256 [L5440] ofs = 512 - length [L5444] CALL, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5730] struct sk_buff *tmp ; [L5732] CALL, EXPR ldv_skb_alloc() [L5888] void *skb ; [L5889] void *tmp___7 ; [L5891] CALL, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5263] EXPR, FCALL calloc(1UL, __size) [L5263] void *p = calloc(1UL, __size); [L5264] CALL assume_abort_if_not(p != (void *)0) [L5260] COND FALSE !(!cond) [L5264] RET assume_abort_if_not(p != (void *)0) [L5265] return p; [L5891] RET, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5891] tmp___7 = ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5892] skb = (struct sk_buff___0 *)tmp___7 [L5893] COND FALSE !(! skb) [L5896] CALL ldv_set_add(LDV_SKBS, skb) [L5764] int i ; [L5766] i = 0 [L5767] COND TRUE 1 [L5768] COND FALSE !(i < last_index) [L5778] COND TRUE last_index < 15 [L5779] set_impl[last_index] = e [L5780] last_index = last_index + 1 [L5896] RET ldv_set_add(LDV_SKBS, skb) [L5897] return (skb); [L5732] RET, EXPR ldv_skb_alloc() [L5732] tmp = ldv_skb_alloc() [L5733] COND TRUE \read(*tmp) [L5735] CALL, EXPR ldv_malloc(size) [L5269] void *p ; [L5270] void *tmp ; [L5271] int tmp___0 ; [L5273] tmp___0 = __VERIFIER_nondet_int() [L5274] COND TRUE tmp___0 != 0 [L5275] return ((void *)0); [L5735] RET, EXPR ldv_malloc(size) [L5735] tmp->head = ldv_malloc(size) [L5736] EXPR tmp->head [L5736] tmp->data = tmp->head [L5738] return (tmp); [L5444] RET, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5444] skb = ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5445] COND TRUE (unsigned long )skb == (unsigned long )((struct sk_buff *)0) [L5446] COND TRUE arcnet_debug & 1 [L5450] EXPR dev->stats.rx_dropped [L5450] dev->stats.rx_dropped = dev->stats.rx_dropped + 1UL [L5628] RET rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5629] ldv_state_variable_1 = 1 [L5606] tmp___5 = __VERIFIER_nondet_int() [L5608] case 0: [L5640] case 1: [L5641] COND TRUE ldv_state_variable_0 != 0 [L5642] tmp___7 = __VERIFIER_nondet_int() [L5644] case 0: [L5645] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L5646] CALL arcnet_rfc1051_exit() [L5388] FCALL arcnet_unregister_proto(& rfc1051_proto) [L5646] RET arcnet_rfc1051_exit() [L5647] ldv_state_variable_0 = 2 [L5682] CALL ldv_check_final_state() [L5955] int tmp___7 ; [L5957] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L5846] return (last_index == 0); [L5957] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L5957] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L5958] COND FALSE !(\read(tmp___7)) [L5960] CALL ldv_error() [L5321] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 57 procedures, 358 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 78.5s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 65.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 842 SDtfs, 2350 SDslu, 3097 SDs, 0 SdLazy, 5144 SolverSat, 1468 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 59.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=569occurred 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: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 187 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 477 NumberOfCodeBlocks, 477 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 110790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 34/34 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...