/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 [2020-10-14 13:49:30,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 13:49:30,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 13:49:30,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 13:49:30,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 13:49:30,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 13:49:30,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 13:49:30,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 13:49:30,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 13:49:30,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 13:49:30,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 13:49:30,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 13:49:30,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 13:49:30,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 13:49:30,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 13:49:30,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 13:49:30,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 13:49:30,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 13:49:30,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 13:49:30,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 13:49:30,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 13:49:30,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 13:49:30,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 13:49:30,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 13:49:30,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 13:49:30,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 13:49:30,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 13:49:30,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 13:49:30,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 13:49:30,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 13:49:30,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 13:49:30,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 13:49:30,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 13:49:30,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 13:49:30,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 13:49:30,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 13:49:30,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 13:49:30,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 13:49:30,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 13:49:30,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 13:49:30,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 13:49:30,864 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 [2020-10-14 13:49:30,887 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 13:49:30,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 13:49:30,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 13:49:30,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 13:49:30,889 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 13:49:30,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 13:49:30,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 13:49:30,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 13:49:30,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 13:49:30,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 13:49:30,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 13:49:30,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 13:49:30,891 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 13:49:30,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 13:49:30,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 13:49:30,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 13:49:30,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 13:49:30,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 13:49:30,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 13:49:30,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 13:49:30,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 13:49:30,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 13:49:30,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 13:49:30,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 13:49:30,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 13:49:30,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 13:49:30,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 13:49:30,894 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 13:49:31,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 13:49:31,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 13:49:31,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 13:49:31,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 13:49:31,265 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 13:49:31,266 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2020-10-14 13:49:31,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeb71ae70/4b86f047d68a4d6f9adb7f417d541aee/FLAGd70953544 [2020-10-14 13:49:32,112 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 13:49:32,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2020-10-14 13:49:32,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeb71ae70/4b86f047d68a4d6f9adb7f417d541aee/FLAGd70953544 [2020-10-14 13:49:32,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeb71ae70/4b86f047d68a4d6f9adb7f417d541aee [2020-10-14 13:49:32,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 13:49:32,664 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 13:49:32,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 13:49:32,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 13:49:32,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 13:49:32,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:49:32" (1/1) ... [2020-10-14 13:49:32,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd2fa81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:32, skipping insertion in model container [2020-10-14 13:49:32,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:49:32" (1/1) ... [2020-10-14 13:49:32,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 13:49:32,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 13:49:34,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 13:49:34,038 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 13:49:34,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 13:49:34,517 INFO L208 MainTranslator]: Completed translation [2020-10-14 13:49:34,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34 WrapperNode [2020-10-14 13:49:34,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 13:49:34,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 13:49:34,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 13:49:34,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 13:49:34,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (1/1) ... [2020-10-14 13:49:34,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (1/1) ... [2020-10-14 13:49:34,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (1/1) ... [2020-10-14 13:49:34,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (1/1) ... [2020-10-14 13:49:34,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (1/1) ... [2020-10-14 13:49:34,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (1/1) ... [2020-10-14 13:49:34,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (1/1) ... [2020-10-14 13:49:34,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 13:49:34,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 13:49:34,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 13:49:34,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 13:49:34,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (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 [2020-10-14 13:49:34,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 13:49:34,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 13:49:34,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-14 13:49:34,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-14 13:49:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 13:49:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-10-14 13:49:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 13:49:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 13:49:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 13:49:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 13:49:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 13:49:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 13:49:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 13:49:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 13:49:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-14 13:49:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_init [2020-10-14 13:49:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_exit [2020-10-14 13:49:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2020-10-14 13:49:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2020-10-14 13:49:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2020-10-14 13:49:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2020-10-14 13:49:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2020-10-14 13:49:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 13:49:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-14 13:49:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-14 13:49:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-14 13:49:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-14 13:49:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-14 13:49:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2020-10-14 13:49:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2020-10-14 13:49:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2020-10-14 13:49:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-14 13:49:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-14 13:49:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-14 13:49:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-14 13:49:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-14 13:49:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-14 13:49:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-14 13:49:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-14 13:49:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-14 13:49:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-14 13:49:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 13:49:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-14 13:49:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-14 13:49:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-14 13:49:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-14 13:49:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-14 13:49:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 13:49:34,815 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2020-10-14 13:49:34,815 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 13:49:34,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-14 13:49:34,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-14 13:49:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-14 13:49:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 13:49:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 13:49:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 13:49:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 13:49:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 13:49:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 13:49:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 13:49:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 13:49:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 13:49:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-14 13:49:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-14 13:49:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-14 13:49:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-14 13:49:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2020-10-14 13:49:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-14 13:49:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2020-10-14 13:49:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-14 13:49:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-14 13:49:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-14 13:49:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-14 13:49:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 13:49:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 13:49:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-14 13:49:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-14 13:49:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-14 13:49:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 13:49:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 13:49:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 13:49:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-14 13:49:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 13:49:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 13:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 13:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-10-14 13:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 13:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 13:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 13:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 13:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 13:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 13:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 13:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 13:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 13:49:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2020-10-14 13:49:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-14 13:49:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2020-10-14 13:49:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2020-10-14 13:49:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2020-10-14 13:49:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2020-10-14 13:49:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2020-10-14 13:49:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2020-10-14 13:49:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_init [2020-10-14 13:49:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 13:49:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 13:49:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_exit [2020-10-14 13:49:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 13:49:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 13:49:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-14 13:49:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 13:49:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 13:49:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 13:49:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 13:49:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 13:49:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-14 13:49:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-14 13:49:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-14 13:49:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-14 13:49:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-14 13:49:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-14 13:49:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-14 13:49:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-14 13:49:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-14 13:49:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-14 13:49:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-14 13:49:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-14 13:49:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 13:49:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 13:49:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 13:49:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 13:49:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 13:49:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 13:49:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 13:49:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 13:49:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 13:49:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 13:49:35,709 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 13:49:37,820 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 13:49:37,821 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-14 13:49:37,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:49:37 BoogieIcfgContainer [2020-10-14 13:49:37,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 13:49:37,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 13:49:37,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 13:49:37,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 13:49:37,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:49:32" (1/3) ... [2020-10-14 13:49:37,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a2769f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:49:37, skipping insertion in model container [2020-10-14 13:49:37,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:49:34" (2/3) ... [2020-10-14 13:49:37,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a2769f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:49:37, skipping insertion in model container [2020-10-14 13:49:37,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:49:37" (3/3) ... [2020-10-14 13:49:37,852 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 [2020-10-14 13:49:37,864 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 13:49:37,873 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 13:49:37,890 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 13:49:37,924 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 13:49:37,924 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 13:49:37,924 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 13:49:37,924 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 13:49:37,925 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 13:49:37,925 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 13:49:37,925 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 13:49:37,925 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 13:49:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-10-14 13:49:37,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 13:49:37,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:49:37,977 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] [2020-10-14 13:49:37,977 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:49:37,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:49:37,983 INFO L82 PathProgramCache]: Analyzing trace with hash -953861834, now seen corresponding path program 1 times [2020-10-14 13:49:37,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:49:37,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137281076] [2020-10-14 13:49:37,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:49:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:38,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:38,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:38,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:39,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 13:49:40,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 13:49:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2042 [2020-10-14 13:49:40,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 13:49:40,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 13:49:40,500 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 13:49:40,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:49:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:40,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 13:49:40,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:49:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:49:40,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 13:49:40,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 13:49:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 13:49:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:49:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:40,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 13:49:40,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:49:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:49:40,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 13:49:40,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 13:49:40,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 13:49:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:49:40,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 13:49:40,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 13:49:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:49:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:40,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 13:49:40,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 13:49:40,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 13:49:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:49:40,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 13:49:40,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 13:49:40,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 13:49:40,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 13:49:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:49:40,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 13:49:40,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 13:49:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:49:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:40,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 13:49:40,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 13:49:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:40,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:40,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:40,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:40,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:40,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 13:49:40,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:40,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:40,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:40,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 13:49:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:40,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 13:49:40,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137281076] [2020-10-14 13:49:40,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 13:49:40,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 13:49:40,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390909550] [2020-10-14 13:49:40,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 13:49:40,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 13:49:40,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 13:49:40,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 13:49:40,959 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 7 states. [2020-10-14 13:49:41,095 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 13:49:47,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 13:49:47,796 INFO L93 Difference]: Finished difference Result 583 states and 781 transitions. [2020-10-14 13:49:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 13:49:47,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-10-14 13:49:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 13:49:47,830 INFO L225 Difference]: With dead ends: 583 [2020-10-14 13:49:47,830 INFO L226 Difference]: Without dead ends: 317 [2020-10-14 13:49:47,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 13:49:47,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-14 13:49:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 249. [2020-10-14 13:49:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-14 13:49:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 310 transitions. [2020-10-14 13:49:47,941 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 310 transitions. Word has length 59 [2020-10-14 13:49:47,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 13:49:47,941 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 310 transitions. [2020-10-14 13:49:47,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 13:49:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 310 transitions. [2020-10-14 13:49:47,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 13:49:47,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:49:47,946 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] [2020-10-14 13:49:47,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 13:49:47,947 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:49:47,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:49:47,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1291717620, now seen corresponding path program 1 times [2020-10-14 13:49:47,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:49:47,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526199282] [2020-10-14 13:49:47,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:49:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:48,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:48,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 13:49:49,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 13:49:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1137 [2020-10-14 13:49:49,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:49:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 13:49:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 13:49:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:49:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:49,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 13:49:49,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:49:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:49:49,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 13:49:49,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:49:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:49,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 13:49:49,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:49:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:49:49,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 13:49:49,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 13:49:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:49:49,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 13:49:49,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:49:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:49,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:49:49,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 13:49:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:49:49,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 13:49:49,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 13:49:49,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 13:49:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:49:49,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 13:49:49,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 13:49:49,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:49:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:49,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:49:49,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:49:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 13:49:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:49:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:49:49,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:49:49,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:49:49,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:49:49,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 13:49:49,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:49:49,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:49:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:49:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 13:49:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:49:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:49:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 13:49:49,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526199282] [2020-10-14 13:49:49,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 13:49:49,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 13:49:49,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118299463] [2020-10-14 13:49:49,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 13:49:49,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 13:49:49,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 13:49:49,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 13:49:49,586 INFO L87 Difference]: Start difference. First operand 249 states and 310 transitions. Second operand 8 states. [2020-10-14 13:49:49,697 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 13:49:49,862 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 13:49:50,021 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-14 13:50:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 13:50:02,553 INFO L93 Difference]: Finished difference Result 594 states and 757 transitions. [2020-10-14 13:50:02,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 13:50:02,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-10-14 13:50:02,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 13:50:02,561 INFO L225 Difference]: With dead ends: 594 [2020-10-14 13:50:02,562 INFO L226 Difference]: Without dead ends: 575 [2020-10-14 13:50:02,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-10-14 13:50:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-14 13:50:02,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 442. [2020-10-14 13:50:02,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-14 13:50:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 558 transitions. [2020-10-14 13:50:02,635 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 558 transitions. Word has length 59 [2020-10-14 13:50:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 13:50:02,635 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 558 transitions. [2020-10-14 13:50:02,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 13:50:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 558 transitions. [2020-10-14 13:50:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 13:50:02,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:50:02,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 13:50:02,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 13:50:02,639 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:50:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:50:02,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1341508693, now seen corresponding path program 1 times [2020-10-14 13:50:02,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:50:02,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983304438] [2020-10-14 13:50:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:50:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:02,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:02,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:02,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:03,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 13:50:05,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 13:50:05,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2534 [2020-10-14 13:50:05,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 13:50:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 13:50:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 13:50:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:05,389 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 13:50:05,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:05,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 13:50:05,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:05,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:50:05,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 13:50:05,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:05,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:05,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:50:05,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:05,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:05,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:05,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 13:50:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:50:05,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 13:50:05,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:05,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:05,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:05,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:05,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 13:50:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:05,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 13:50:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 13:50:05,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:05,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 13:50:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 13:50:05,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 13:50:05,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 13:50:05,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:05,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 13:50:05,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:05,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 13:50:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:05,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:05,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:05,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:05,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:05,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 13:50:05,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:05,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 13:50:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:05,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 13:50:05,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983304438] [2020-10-14 13:50:05,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 13:50:05,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 13:50:05,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537868620] [2020-10-14 13:50:05,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 13:50:05,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 13:50:05,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 13:50:05,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 13:50:05,727 INFO L87 Difference]: Start difference. First operand 442 states and 558 transitions. Second operand 11 states. [2020-10-14 13:50:05,898 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 13:50:06,112 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 13:50:06,300 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-14 13:50:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 13:50:18,224 INFO L93 Difference]: Finished difference Result 995 states and 1271 transitions. [2020-10-14 13:50:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 13:50:18,224 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-10-14 13:50:18,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 13:50:18,231 INFO L225 Difference]: With dead ends: 995 [2020-10-14 13:50:18,232 INFO L226 Difference]: Without dead ends: 574 [2020-10-14 13:50:18,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2020-10-14 13:50:18,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-14 13:50:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 441. [2020-10-14 13:50:18,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-14 13:50:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 554 transitions. [2020-10-14 13:50:18,323 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 554 transitions. Word has length 61 [2020-10-14 13:50:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 13:50:18,325 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 554 transitions. [2020-10-14 13:50:18,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 13:50:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 554 transitions. [2020-10-14 13:50:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-14 13:50:18,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:50:18,337 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 13:50:18,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 13:50:18,337 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:50:18,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:50:18,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1324951359, now seen corresponding path program 1 times [2020-10-14 13:50:18,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:50:18,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101999729] [2020-10-14 13:50:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:50:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:18,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:18,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 13:50:19,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 13:50:19,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 724 [2020-10-14 13:50:19,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 13:50:19,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 13:50:19,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 13:50:19,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:19,254 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 13:50:19,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:19,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 13:50:19,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:19,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:50:19,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 13:50:19,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:19,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:19,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:50:19,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:19,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:19,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 13:50:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:50:19,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 13:50:19,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:19,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:19,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 81 [2020-10-14 13:50:19,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 13:50:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:19,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 13:50:19,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 13:50:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 13:50:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 13:50:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:19,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 13:50:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 13:50:19,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 13:50:19,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 13:50:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 13:50:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 13:50:19,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 13:50:19,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 13:50:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:50:19,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 13:50:19,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:19,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:19,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:19,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:19,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 13:50:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:50:19,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 13:50:19,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:19,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:19,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:19,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:19,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:19,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 13:50:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:50:19,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:50:19,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 13:50:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:19,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 13:50:19,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 13:50:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:19,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:19,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:19,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:19,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:19,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:19,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 13:50:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:19,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-14 13:50:19,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101999729] [2020-10-14 13:50:19,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 13:50:19,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 13:50:19,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446890505] [2020-10-14 13:50:19,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 13:50:19,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 13:50:19,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 13:50:19,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 13:50:19,782 INFO L87 Difference]: Start difference. First operand 441 states and 554 transitions. Second operand 11 states. [2020-10-14 13:50:19,898 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 13:50:20,332 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 13:50:20,470 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 13:50:35,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 13:50:35,917 INFO L93 Difference]: Finished difference Result 995 states and 1266 transitions. [2020-10-14 13:50:35,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 13:50:35,918 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 111 [2020-10-14 13:50:35,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 13:50:35,924 INFO L225 Difference]: With dead ends: 995 [2020-10-14 13:50:35,924 INFO L226 Difference]: Without dead ends: 572 [2020-10-14 13:50:35,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-10-14 13:50:35,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-10-14 13:50:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 442. [2020-10-14 13:50:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-14 13:50:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 555 transitions. [2020-10-14 13:50:35,977 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 555 transitions. Word has length 111 [2020-10-14 13:50:35,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 13:50:35,977 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 555 transitions. [2020-10-14 13:50:35,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 13:50:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 555 transitions. [2020-10-14 13:50:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 13:50:35,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:50:35,980 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 13:50:35,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 13:50:35,981 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:50:35,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:50:35,981 INFO L82 PathProgramCache]: Analyzing trace with hash -315800408, now seen corresponding path program 1 times [2020-10-14 13:50:35,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:50:35,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391984272] [2020-10-14 13:50:35,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:50:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 13:50:36,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-14 13:50:36,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 13:50:36,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-14 13:50:36,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 13:50:36,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:36,620 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 13:50:36,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:36,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 13:50:36,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:36,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:50:36,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 13:50:36,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:36,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:36,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:36,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:36,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:36,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:36,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:50:36,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:36,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 13:50:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:50:36,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 13:50:36,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:50:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 13:50:36,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:36,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 13:50:36,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:50:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 13:50:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:36,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 13:50:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 13:50:36,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 13:50:36,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:50:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 13:50:36,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:36,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 13:50:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 13:50:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 13:50:36,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:50:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 13:50:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:36,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 13:50:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:36,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:36,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:36,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 13:50:36,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 13:50:36,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:36,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:50:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 13:50:36,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:37,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:50:37,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 13:50:37,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:37,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:37,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 13:50:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:37,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:37,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:50:37,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:37,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 13:50:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:50:37,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 13:50:37,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:37,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:50:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:37,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:50:37,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:37,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:50:37,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:50:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:50:37,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 13:50:37,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:37,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:37,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 13:50:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:50:37,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 13:50:37,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:50:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 13:50:37,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:37,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:50:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:37,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 13:50:37,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:50:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:50:37,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:37,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 13:50:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:50:37,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:50:37,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:50:37,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:50:37,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:50:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 13:50:37,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:50:37,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:50:37,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 13:50:37,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:50:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 13:50:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:50:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-14 13:50:37,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391984272] [2020-10-14 13:50:37,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 13:50:37,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 13:50:37,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139194062] [2020-10-14 13:50:37,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 13:50:37,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 13:50:37,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 13:50:37,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-14 13:50:37,293 INFO L87 Difference]: Start difference. First operand 442 states and 555 transitions. Second operand 13 states. [2020-10-14 13:50:37,419 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 13:50:37,638 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 13:50:37,832 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-14 13:50:47,816 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2020-10-14 13:50:47,976 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 13:50:48,123 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 13:50:59,451 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 13:50:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 13:50:59,968 INFO L93 Difference]: Finished difference Result 1459 states and 1875 transitions. [2020-10-14 13:50:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 13:50:59,969 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-14 13:50:59,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 13:50:59,976 INFO L225 Difference]: With dead ends: 1459 [2020-10-14 13:50:59,977 INFO L226 Difference]: Without dead ends: 1023 [2020-10-14 13:50:59,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-14 13:50:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2020-10-14 13:51:00,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 931. [2020-10-14 13:51:00,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-10-14 13:51:00,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1189 transitions. [2020-10-14 13:51:00,067 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1189 transitions. Word has length 112 [2020-10-14 13:51:00,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 13:51:00,068 INFO L479 AbstractCegarLoop]: Abstraction has 931 states and 1189 transitions. [2020-10-14 13:51:00,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 13:51:00,068 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1189 transitions. [2020-10-14 13:51:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-14 13:51:00,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:51:00,074 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] [2020-10-14 13:51:00,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 13:51:00,074 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:51:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:51:00,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1291641227, now seen corresponding path program 1 times [2020-10-14 13:51:00,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:51:00,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175870200] [2020-10-14 13:51:00,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:51:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:00,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:00,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:00,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:04,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:04,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-14 13:51:04,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 13:51:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4582 [2020-10-14 13:51:04,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:04,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 13:51:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 13:51:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 13:51:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:51:04,905 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 13:51:04,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:51:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:04,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:04,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:04,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:04,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:04,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 13:51:04,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:04,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:51:04,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:51:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:04,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:04,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:04,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:51:04,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:04,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 13:51:04,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:04,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:04,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:04,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:04,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:04,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:04,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:51:04,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:04,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:04,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:04,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:04,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:51:04,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:51:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:04,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:04,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:04,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:51:04,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:04,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:51:05,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 13:51:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:51:05,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:51:05,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:51:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:05,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:51:05,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 13:51:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 13:51:05,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 13:51:05,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 13:51:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 13:51:05,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 13:51:05,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:51:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 13:51:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 13:51:05,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 13:51:05,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:51:05,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 13:51:05,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:05,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:51:05,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:51:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:51:05,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:51:05,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 13:51:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:51:05,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 13:51:05,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:05,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:51:05,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:51:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:05,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:51:05,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:05,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:51:05,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:05,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:05,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:05,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 13:51:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:05,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:05,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:06,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:06,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 13:51:06,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 13:51:06,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 777 [2020-10-14 13:51:06,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:06,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 13:51:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 13:51:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 13:51:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:06,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:06,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:06,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:06,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:06,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:06,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:51:06,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:06,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:06,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:51:06,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 13:51:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:06,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:06,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:06,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:06,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:06,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 13:51:06,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 13:51:06,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-10-14 13:51:06,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:06,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 13:51:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 13:51:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 13:51:06,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:51:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:06,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:06,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:06,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 13:51:07,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 13:51:07,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-14 13:51:07,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 13:51:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 13:51:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:07,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 13:51:07,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:07,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 13:51:07,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:07,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:07,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:07,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 13:51:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:07,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:07,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:07,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:51:07,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:51:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:07,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:51:07,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:07,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 13:51:07,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:07,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:07,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:07,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 13:51:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:07,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 13:51:07,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:07,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 13:51:07,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:51:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 13:51:07,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 13:51:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:07,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:51:07,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:07,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:51:07,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:07,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 13:51:07,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:07,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:51:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:07,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:07,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:07,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 13:51:07,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:51:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:07,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 13:51:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:51:07,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:51:07,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:51:07,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:51:07,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:51:07,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 13:51:07,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:51:07,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:51:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:51:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 13:51:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:51:07,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:51:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 13:51:07,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175870200] [2020-10-14 13:51:07,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 13:51:07,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 13:51:07,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382647066] [2020-10-14 13:51:07,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 13:51:07,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 13:51:07,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 13:51:07,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-14 13:51:07,248 INFO L87 Difference]: Start difference. First operand 931 states and 1189 transitions. Second operand 15 states. [2020-10-14 13:51:07,371 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 13:51:26,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 13:51:26,009 INFO L93 Difference]: Finished difference Result 1956 states and 2526 transitions. [2020-10-14 13:51:26,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 13:51:26,012 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 170 [2020-10-14 13:51:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 13:51:26,019 INFO L225 Difference]: With dead ends: 1956 [2020-10-14 13:51:26,019 INFO L226 Difference]: Without dead ends: 1047 [2020-10-14 13:51:26,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2020-10-14 13:51:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-10-14 13:51:26,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 947. [2020-10-14 13:51:26,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 947 states. [2020-10-14 13:51:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1203 transitions. [2020-10-14 13:51:26,111 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1203 transitions. Word has length 170 [2020-10-14 13:51:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 13:51:26,112 INFO L479 AbstractCegarLoop]: Abstraction has 947 states and 1203 transitions. [2020-10-14 13:51:26,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 13:51:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1203 transitions. [2020-10-14 13:51:26,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-14 13:51:26,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:51:26,119 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] [2020-10-14 13:51:26,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 13:51:26,119 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:51:26,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:51:26,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2097619666, now seen corresponding path program 1 times [2020-10-14 13:51:26,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:51:26,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119786090] [2020-10-14 13:51:26,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:51:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 13:51:26,211 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 13:51:26,212 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 13:51:26,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 13:51:26,230 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-14 13:51:26,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 01:51:26 BoogieIcfgContainer [2020-10-14 13:51:26,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 13:51:26,272 INFO L168 Benchmark]: Toolchain (without parser) took 113607.82 ms. Allocated memory was 146.3 MB in the beginning and 733.0 MB in the end (delta: 586.7 MB). Free memory was 95.0 MB in the beginning and 544.1 MB in the end (delta: -449.1 MB). Peak memory consumption was 137.6 MB. Max. memory is 7.1 GB. [2020-10-14 13:51:26,277 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 13:51:26,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1853.04 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 94.6 MB in the beginning and 108.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2020-10-14 13:51:26,278 INFO L168 Benchmark]: Boogie Preprocessor took 203.73 ms. Allocated memory is still 206.6 MB. Free memory was 108.2 MB in the beginning and 100.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2020-10-14 13:51:26,285 INFO L168 Benchmark]: RCFGBuilder took 3107.93 ms. Allocated memory was 206.6 MB in the beginning and 261.6 MB in the end (delta: 55.1 MB). Free memory was 100.6 MB in the beginning and 120.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2020-10-14 13:51:26,289 INFO L168 Benchmark]: TraceAbstraction took 108435.54 ms. Allocated memory was 261.6 MB in the beginning and 733.0 MB in the end (delta: 471.3 MB). Free memory was 120.0 MB in the beginning and 544.1 MB in the end (delta: -424.1 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2020-10-14 13:51:26,295 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 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1853.04 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 94.6 MB in the beginning and 108.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 203.73 ms. Allocated memory is still 206.6 MB. Free memory was 108.2 MB in the beginning and 100.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3107.93 ms. Allocated memory was 206.6 MB in the beginning and 261.6 MB in the end (delta: 55.1 MB). Free memory was 100.6 MB in the beginning and 120.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 108435.54 ms. Allocated memory was 261.6 MB in the beginning and 733.0 MB in the end (delta: 471.3 MB). Free memory was 120.0 MB in the beginning and 544.1 MB in the end (delta: -424.1 MB). Peak memory consumption was 47.3 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: 108.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 89.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1547 SDtfs, 4665 SDslu, 3102 SDs, 0 SdLazy, 6262 SolverSat, 3056 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 81.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=947occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 656 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.9s InterpolantComputationTime, 748 NumberOfCodeBlocks, 748 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 566 ConstructedInterpolants, 0 QuantifiedInterpolants, 195229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 189/189 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...