/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 10:15:19,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 10:15:19,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 10:15:19,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 10:15:19,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 10:15:19,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 10:15:19,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 10:15:19,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 10:15:19,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 10:15:19,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 10:15:19,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 10:15:19,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 10:15:19,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 10:15:19,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 10:15:19,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 10:15:19,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 10:15:19,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 10:15:19,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 10:15:19,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 10:15:19,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 10:15:19,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 10:15:19,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 10:15:19,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 10:15:19,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 10:15:19,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 10:15:19,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 10:15:19,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 10:15:19,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 10:15:19,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 10:15:19,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 10:15:19,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 10:15:19,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 10:15:19,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 10:15:19,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 10:15:19,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 10:15:19,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 10:15:19,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 10:15:19,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 10:15:19,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 10:15:19,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 10:15:19,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 10:15:19,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 10:15:19,985 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 10:15:19,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 10:15:19,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 10:15:19,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 10:15:19,988 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 10:15:19,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 10:15:19,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 10:15:19,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 10:15:19,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 10:15:19,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 10:15:19,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 10:15:19,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 10:15:19,989 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 10:15:19,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 10:15:19,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 10:15:19,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 10:15:19,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 10:15:19,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 10:15:19,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:15:19,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 10:15:19,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 10:15:19,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 10:15:19,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 10:15:19,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 10:15:19,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 10:15:19,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 10:15:19,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 10:15:19,992 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 10:15:20,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 10:15:20,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 10:15:20,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 10:15:20,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 10:15:20,402 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 10:15:20,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-27 10:15:20,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df6cacfa3/8c17ac3873294b8983122ac9397adaa0/FLAG72af26770 [2020-10-27 10:15:21,420 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 10:15:21,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-27 10:15:21,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df6cacfa3/8c17ac3873294b8983122ac9397adaa0/FLAG72af26770 [2020-10-27 10:15:21,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df6cacfa3/8c17ac3873294b8983122ac9397adaa0 [2020-10-27 10:15:21,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 10:15:21,941 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 10:15:21,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 10:15:21,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 10:15:21,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 10:15:21,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:15:21" (1/1) ... [2020-10-27 10:15:21,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf18c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:21, skipping insertion in model container [2020-10-27 10:15:21,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:15:21" (1/1) ... [2020-10-27 10:15:21,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 10:15:22,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 10:15:23,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:15:23,234 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 10:15:23,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:15:23,693 INFO L208 MainTranslator]: Completed translation [2020-10-27 10:15:23,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23 WrapperNode [2020-10-27 10:15:23,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 10:15:23,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 10:15:23,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 10:15:23,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 10:15:23,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... [2020-10-27 10:15:23,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... [2020-10-27 10:15:23,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... [2020-10-27 10:15:23,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... [2020-10-27 10:15:23,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... [2020-10-27 10:15:23,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... [2020-10-27 10:15:23,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... [2020-10-27 10:15:23,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 10:15:23,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 10:15:23,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 10:15:23,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 10:15:23,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:15:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 10:15:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 10:15:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-27 10:15:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 10:15:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-27 10:15:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-27 10:15:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 10:15:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 10:15:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 10:15:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 10:15:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 10:15:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 10:15:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 10:15:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 10:15:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 10:15:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-27 10:15:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-27 10:15:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_init [2020-10-27 10:15:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_exit [2020-10-27 10:15:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2020-10-27 10:15:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2020-10-27 10:15:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2020-10-27 10:15:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure load_pkt [2020-10-27 10:15:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2020-10-27 10:15:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure continue_tx [2020-10-27 10:15:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2020-10-27 10:15:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 10:15:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-27 10:15:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-27 10:15:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-27 10:15:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-27 10:15:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-27 10:15:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2020-10-27 10:15:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-10-27 10:15:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2020-10-27 10:15:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-27 10:15:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 10:15:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-27 10:15:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-27 10:15:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-27 10:15:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 10:15:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-27 10:15:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-27 10:15:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-27 10:15:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-27 10:15:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 10:15:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-27 10:15:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-27 10:15:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-27 10:15:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-27 10:15:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-27 10:15:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 10:15:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-10-27 10:15:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2020-10-27 10:15:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 10:15:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-27 10:15:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-27 10:15:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-27 10:15:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 10:15:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 10:15:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 10:15:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 10:15:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 10:15:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 10:15:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 10:15:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 10:15:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 10:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 10:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 10:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-27 10:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 10:15:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 10:15:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 10:15:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-27 10:15:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-27 10:15:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-27 10:15:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-27 10:15:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-27 10:15:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2020-10-27 10:15:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-27 10:15:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-27 10:15:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-27 10:15:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-27 10:15:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 10:15:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 10:15:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-27 10:15:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-27 10:15:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-27 10:15:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 10:15:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 10:15:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 10:15:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-27 10:15:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 10:15:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 10:15:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 10:15:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 10:15:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 10:15:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 10:15:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 10:15:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 10:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 10:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 10:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 10:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2020-10-27 10:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-27 10:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-10-27 10:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-27 10:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-10-27 10:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2020-10-27 10:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2020-10-27 10:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2020-10-27 10:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2020-10-27 10:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2020-10-27 10:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2020-10-27 10:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure continue_tx [2020-10-27 10:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_init [2020-10-27 10:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 10:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_exit [2020-10-27 10:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 10:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-27 10:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 10:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure load_pkt [2020-10-27 10:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 10:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 10:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 10:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 10:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 10:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-27 10:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 10:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-27 10:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-27 10:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-27 10:15:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 10:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-27 10:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-27 10:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-27 10:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-27 10:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-27 10:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-27 10:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 10:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 10:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 10:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 10:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 10:15:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 10:15:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 10:15:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 10:15:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 10:15:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 10:15:24,905 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 10:15:39,925 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 10:15:39,926 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 10:15:39,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:15:39 BoogieIcfgContainer [2020-10-27 10:15:39,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 10:15:39,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 10:15:39,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 10:15:39,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 10:15:39,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:15:21" (1/3) ... [2020-10-27 10:15:39,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e860af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:15:39, skipping insertion in model container [2020-10-27 10:15:39,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:15:23" (2/3) ... [2020-10-27 10:15:39,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e860af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:15:39, skipping insertion in model container [2020-10-27 10:15:39,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:15:39" (3/3) ... [2020-10-27 10:15:39,938 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-27 10:15:39,950 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 10:15:39,956 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 10:15:39,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 10:15:40,000 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 10:15:40,000 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 10:15:40,000 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 10:15:40,000 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 10:15:40,001 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 10:15:40,001 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 10:15:40,001 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 10:15:40,001 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 10:15:40,027 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-27 10:15:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 10:15:40,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:15:40,040 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] [2020-10-27 10:15:40,041 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:15:40,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:15:40,047 INFO L82 PathProgramCache]: Analyzing trace with hash 362771650, now seen corresponding path program 1 times [2020-10-27 10:15:40,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:15:40,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182887588] [2020-10-27 10:15:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:15:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:40,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:40,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:44,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:44,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 10:15:44,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:15:44,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4398 [2020-10-27 10:15:44,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:15:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 10:15:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 10:15:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 10:15:45,322 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-27 10:15:45,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:15:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:15:45,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:15:45,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 10:15:45,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:15:45,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:15:45,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:15:45,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:15:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:15:45,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:15:45,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 10:15:45,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:15:45,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:15:45,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:15:45,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:15:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:15:45,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:15:45,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:15:45,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:15:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:15:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:15:45,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:15:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:15:45,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:15:45,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:15:45,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:15:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:15:45,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:15:45,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:15:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:15:45,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:15:45,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 10:15:45,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:15:45,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:15:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:15:45,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 10:15:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:15:45,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:15:45,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:15:45,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:15:45,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:15:45,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:15:45,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:15:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:15:45,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:15:45,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:15:45,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:15:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:15:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:15:45,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 10:15:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:15:45,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:15:45,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:15:45,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:15:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:15:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 10:15:45,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:15:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:15:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:15:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:15:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:15:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 10:15:45,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182887588] [2020-10-27 10:15:45,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:15:45,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 10:15:45,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514996825] [2020-10-27 10:15:45,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 10:15:45,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:15:45,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 10:15:45,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-27 10:15:45,788 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 10 states. [2020-10-27 10:15:46,288 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-27 10:15:47,327 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-27 10:15:47,999 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-27 10:15:53,371 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 249 [2020-10-27 10:15:53,932 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-27 10:15:54,472 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-27 10:16:06,832 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-27 10:16:07,619 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-27 10:16:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:16:21,460 INFO L93 Difference]: Finished difference Result 1043 states and 1456 transitions. [2020-10-27 10:16:21,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 10:16:21,462 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2020-10-27 10:16:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:16:21,500 INFO L225 Difference]: With dead ends: 1043 [2020-10-27 10:16:21,500 INFO L226 Difference]: Without dead ends: 610 [2020-10-27 10:16:21,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2020-10-27 10:16:21,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-27 10:16:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 487. [2020-10-27 10:16:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-10-27 10:16:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 642 transitions. [2020-10-27 10:16:21,696 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 642 transitions. Word has length 51 [2020-10-27 10:16:21,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:16:21,697 INFO L481 AbstractCegarLoop]: Abstraction has 487 states and 642 transitions. [2020-10-27 10:16:21,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 10:16:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 642 transitions. [2020-10-27 10:16:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-27 10:16:21,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:16:21,706 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 10:16:21,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 10:16:21,706 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:16:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:16:21,707 INFO L82 PathProgramCache]: Analyzing trace with hash -141259929, now seen corresponding path program 1 times [2020-10-27 10:16:21,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:16:21,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498138566] [2020-10-27 10:16:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:16:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:21,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:21,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:22,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:25,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:26,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:26,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-27 10:16:26,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 10:16:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 10:16:26,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 10:16:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 10:16:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 10:16:26,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:27,366 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-27 10:16:27,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:16:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:27,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:27,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:16:27,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:27,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 10:16:27,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:27,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:16:27,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:27,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:16:27,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:16:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:27,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:27,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:16:27,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:27,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:16:27,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:16:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:16:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:27,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:16:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:27,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:27,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:16:27,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:27,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 10:16:27,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:27,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:16:27,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:27,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:16:27,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:27,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:16:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:27,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:27,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:16:27,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:16:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:16:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:16:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:27,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:16:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:27,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:27,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:16:27,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:16:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 10:16:27,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:16:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:16:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:27,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 10:16:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:27,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:27,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 10:16:27,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:16:27,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-27 10:16:27,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:16:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:16:27,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 10:16:27,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:16:27,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:16:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:27,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:27,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:27,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:16:27,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:16:27,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:27,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:16:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:16:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:16:28,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 10:16:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:28,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:28,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:28,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:16:28,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:28,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:16:28,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:28,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:16:28,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:28,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:16:28,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:28,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:16:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:28,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:28,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:28,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:16:28,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:28,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:16:28,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:16:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:16:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:16:28,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 10:16:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:16:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:16:28,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:16:28,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:16:28,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:16:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 10:16:28,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:16:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:16:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:16:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:16:28,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:16:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 10:16:28,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498138566] [2020-10-27 10:16:28,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:16:28,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 10:16:28,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641816859] [2020-10-27 10:16:28,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 10:16:28,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:16:28,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 10:16:28,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-27 10:16:28,122 INFO L87 Difference]: Start difference. First operand 487 states and 642 transitions. Second operand 11 states. [2020-10-27 10:16:28,570 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-27 10:16:29,750 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-27 10:16:30,401 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-27 10:16:59,422 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2020-10-27 10:17:00,823 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2020-10-27 10:17:01,513 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:17:02,154 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:17:27,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:17:27,829 INFO L93 Difference]: Finished difference Result 805 states and 1089 transitions. [2020-10-27 10:17:27,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 10:17:27,838 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2020-10-27 10:17:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:17:27,848 INFO L225 Difference]: With dead ends: 805 [2020-10-27 10:17:27,848 INFO L226 Difference]: Without dead ends: 784 [2020-10-27 10:17:27,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-10-27 10:17:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-27 10:17:27,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 670. [2020-10-27 10:17:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2020-10-27 10:17:27,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 893 transitions. [2020-10-27 10:17:27,985 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 893 transitions. Word has length 74 [2020-10-27 10:17:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:17:27,986 INFO L481 AbstractCegarLoop]: Abstraction has 670 states and 893 transitions. [2020-10-27 10:17:27,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 10:17:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 893 transitions. [2020-10-27 10:17:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 10:17:27,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:17:27,997 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:17:27,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 10:17:27,997 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:17:27,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:17:27,998 INFO L82 PathProgramCache]: Analyzing trace with hash 375725453, now seen corresponding path program 1 times [2020-10-27 10:17:27,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:17:27,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209930668] [2020-10-27 10:17:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:17:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:28,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:28,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:28,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:28,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:28,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:31,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:33,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:33,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-27 10:17:33,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 10:17:33,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-27 10:17:33,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:33,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:17:33,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 10:17:33,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 10:17:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:33,636 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-27 10:17:33,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:17:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:33,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:33,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:33,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:17:33,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:33,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 10:17:33,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:33,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:33,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:17:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:33,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:33,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:17:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:33,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:33,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:33,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:17:33,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:17:33,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:17:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:33,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:33,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:17:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:33,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:33,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:17:33,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:17:33,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:17:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:33,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:33,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:17:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:33,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:33,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:33,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:17:33,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:33,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:17:33,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:33,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:17:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:33,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:33,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:17:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:33,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:33,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:33,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:17:33,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:33,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:17:33,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:33,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:17:33,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:17:33,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:17:33,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 10:17:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:33,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:33,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:34,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:34,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:38,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:38,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 10:17:38,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:17:38,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 10:17:38,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:17:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 10:17:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:17:38,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:39,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:17:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:39,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:39,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:39,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:17:39,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:39,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:17:39,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:17:39,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:39,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:39,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:17:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:39,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:39,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:39,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:39,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:39,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 10:17:39,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:17:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-27 10:17:39,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:17:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 10:17:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:17:39,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:39,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:17:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:39,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:39,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:39,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 10:17:39,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:39,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 10:17:39,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:39,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:17:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 10:17:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:17:39,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 10:17:40,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:17:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:40,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:40,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:40,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:17:40,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:40,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:17:40,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:17:40,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:17:40,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:17:40,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:40,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 10:17:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:40,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:40,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:40,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:17:40,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:17:40,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 10:17:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:40,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 10:17:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:40,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:40,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:40,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:17:40,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:17:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:17:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:40,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:17:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:40,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:17:40,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:17:40,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:17:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:40,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 10:17:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:17:40,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:17:40,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:17:40,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:17:40,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:17:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:17:40,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:17:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:17:40,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:17:40,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:17:40,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:17:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 10:17:40,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209930668] [2020-10-27 10:17:40,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:17:40,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 10:17:40,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060891148] [2020-10-27 10:17:40,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 10:17:40,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:17:40,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 10:17:40,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-27 10:17:40,475 INFO L87 Difference]: Start difference. First operand 670 states and 893 transitions. Second operand 16 states. [2020-10-27 10:17:41,012 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-27 10:17:43,329 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2020-10-27 10:17:44,906 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-27 10:17:45,524 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-27 10:18:10,649 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-27 10:18:13,648 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-27 10:18:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:18:44,282 INFO L93 Difference]: Finished difference Result 1417 states and 1922 transitions. [2020-10-27 10:18:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 10:18:44,286 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 111 [2020-10-27 10:18:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:18:44,295 INFO L225 Difference]: With dead ends: 1417 [2020-10-27 10:18:44,295 INFO L226 Difference]: Without dead ends: 765 [2020-10-27 10:18:44,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-10-27 10:18:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-27 10:18:44,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 679. [2020-10-27 10:18:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-10-27 10:18:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 906 transitions. [2020-10-27 10:18:44,399 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 906 transitions. Word has length 111 [2020-10-27 10:18:44,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:18:44,400 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 906 transitions. [2020-10-27 10:18:44,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 10:18:44,400 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 906 transitions. [2020-10-27 10:18:44,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 10:18:44,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:18:44,404 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 10:18:44,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 10:18:44,405 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:18:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:18:44,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1874199060, now seen corresponding path program 1 times [2020-10-27 10:18:44,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:18:44,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140806210] [2020-10-27 10:18:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:18:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:44,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:44,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:44,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:46,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:49,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:49,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-27 10:18:49,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 10:18:49,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 10:18:49,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:18:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 10:18:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 10:18:49,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:49,955 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-27 10:18:49,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:18:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:49,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:50,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:50,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:18:50,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:50,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 10:18:50,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:50,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:18:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:50,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:50,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:50,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:18:50,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:18:50,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:50,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:50,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:50,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:18:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:50,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:50,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:18:50,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:50,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:18:50,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:50,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:50,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:18:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:50,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:50,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:50,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:18:50,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:50,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:18:50,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:50,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:50,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:50,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:50,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:50,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:18:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:50,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:50,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:50,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:18:50,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:50,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:18:50,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:50,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:50,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:50,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:50,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:50,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 10:18:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:50,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:50,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:50,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:51,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:51,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:53,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-27 10:18:53,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 10:18:53,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2842 [2020-10-27 10:18:53,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:18:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 10:18:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:18:53,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:53,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:18:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:53,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:53,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:18:53,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:53,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:18:53,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 10:18:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:53,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:53,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 10:18:53,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:18:53,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-27 10:18:53,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:53,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:18:53,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 10:18:53,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:18:53,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:53,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:18:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:53,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:53,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 10:18:53,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:53,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 10:18:53,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 10:18:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 10:18:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:53,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:18:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:53,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 10:18:53,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:53,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 10:18:53,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:18:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 10:18:53,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 10:18:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:53,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:53,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:18:53,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:18:53,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:18:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:18:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:18:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:53,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:53,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:18:53,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:53,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:18:53,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:18:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:18:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:53,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:18:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:53,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:54,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:54,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:18:54,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:54,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:18:54,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:18:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:18:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:54,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 10:18:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:54,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:54,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:54,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:18:54,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:18:54,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:18:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:54,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:18:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:54,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:54,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:54,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:18:54,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:18:54,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:18:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:54,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 10:18:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:18:54,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:18:54,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:18:54,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:18:54,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:18:54,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:18:54,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:18:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:18:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:18:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:18:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:18:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 10:18:54,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140806210] [2020-10-27 10:18:54,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:18:54,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 10:18:54,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913041002] [2020-10-27 10:18:54,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 10:18:54,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:18:54,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 10:18:54,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-27 10:18:54,084 INFO L87 Difference]: Start difference. First operand 679 states and 906 transitions. Second operand 18 states. [2020-10-27 10:18:54,571 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-27 10:18:56,410 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-27 10:18:57,226 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 243