/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:53:31,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:53:31,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:53:31,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:53:31,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:53:31,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:53:31,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:53:31,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:53:31,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:53:31,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:53:31,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:53:31,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:53:31,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:53:31,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:53:32,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:53:32,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:53:32,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:53:32,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:53:32,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:53:32,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:53:32,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:53:32,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:53:32,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:53:32,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:53:32,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:53:32,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:53:32,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:53:32,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:53:32,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:53:32,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:53:32,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:53:32,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:53:32,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:53:32,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:53:32,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:53:32,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:53:32,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:53:32,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:53:32,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:53:32,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:53:32,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:53:32,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 11:53:32,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:53:32,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:53:32,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:53:32,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:53:32,068 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:53:32,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:53:32,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:53:32,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:53:32,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:53:32,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:53:32,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:53:32,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:53:32,070 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:53:32,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:53:32,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:53:32,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:53:32,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:53:32,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:53:32,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:53:32,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:53:32,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:53:32,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:53:32,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:53:32,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:53:32,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:53:32,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:53:32,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 11:53:32,073 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:53:32,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:53:32,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:53:32,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:53:32,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:53:32,583 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:53:32,584 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 11:53:32,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1283a39c7/8f9814ce233e4e6c8b21825e1390193f/FLAG7ad6c5719 [2020-09-25 11:53:33,567 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:53:33,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 11:53:33,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1283a39c7/8f9814ce233e4e6c8b21825e1390193f/FLAG7ad6c5719 [2020-09-25 11:53:34,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1283a39c7/8f9814ce233e4e6c8b21825e1390193f [2020-09-25 11:53:34,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:53:34,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:53:34,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:53:34,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:53:34,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:53:34,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:53:34" (1/1) ... [2020-09-25 11:53:34,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d52471a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:34, skipping insertion in model container [2020-09-25 11:53:34,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:53:34" (1/1) ... [2020-09-25 11:53:34,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:53:34,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:53:35,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:53:35,602 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:53:35,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:53:35,860 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:53:35,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35 WrapperNode [2020-09-25 11:53:35,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:53:35,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:53:35,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:53:35,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:53:35,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... [2020-09-25 11:53:35,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... [2020-09-25 11:53:35,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... [2020-09-25 11:53:35,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... [2020-09-25 11:53:35,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... [2020-09-25 11:53:35,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... [2020-09-25 11:53:35,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... [2020-09-25 11:53:36,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:53:36,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:53:36,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:53:36,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:53:36,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:53:36,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:53:36,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:53:36,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 11:53:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 11:53:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 11:53:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 11:53:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 11:53:36,109 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 11:53:36,109 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 11:53:36,109 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 11:53:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 11:53:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 11:53:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 11:53:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 11:53:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 11:53:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 11:53:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 11:53:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 11:53:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 11:53:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 11:53:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 11:53:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 11:53:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 11:53:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 11:53:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 11:53:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 11:53:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 11:53:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 11:53:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 11:53:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 11:53:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 11:53:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 11:53:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 11:53:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 11:53:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:53:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 11:53:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 11:53:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 11:53:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 11:53:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 11:53:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 11:53:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 11:53:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 11:53:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 11:53:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 11:53:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 11:53:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 11:53:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 11:53:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 11:53:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 11:53:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 11:53:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 11:53:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 11:53:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 11:53:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 11:53:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 11:53:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 11:53:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 11:53:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 11:53:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 11:53:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 11:53:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 11:53:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 11:53:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 11:53:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 11:53:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 11:53:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 11:53:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 11:53:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 11:53:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 11:53:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 11:53:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 11:53:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 11:53:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 11:53:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 11:53:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 11:53:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 11:53:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 11:53:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 11:53:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 11:53:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 11:53:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:53:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 11:53:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 11:53:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 11:53:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 11:53:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:53:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 11:53:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 11:53:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 11:53:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 11:53:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 11:53:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 11:53:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 11:53:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 11:53:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 11:53:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:53:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 11:53:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 11:53:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 11:53:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:53:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 11:53:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 11:53:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 11:53:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 11:53:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 11:53:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:53:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 11:53:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 11:53:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 11:53:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 11:53:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 11:53:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 11:53:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:53:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 11:53:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 11:53:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 11:53:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 11:53:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 11:53:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:53:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 11:53:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 11:53:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 11:53:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 11:53:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 11:53:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 11:53:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 11:53:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 11:53:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 11:53:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 11:53:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 11:53:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 11:53:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 11:53:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 11:53:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 11:53:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 11:53:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 11:53:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 11:53:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 11:53:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 11:53:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 11:53:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 11:53:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 11:53:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 11:53:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 11:53:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 11:53:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 11:53:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 11:53:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:53:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 11:53:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 11:53:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 11:53:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 11:53:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 11:53:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 11:53:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 11:53:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 11:53:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 11:53:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:53:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 11:53:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 11:53:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 11:53:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 11:53:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 11:53:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 11:53:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 11:53:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:53:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 11:53:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 11:53:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 11:53:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 11:53:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 11:53:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 11:53:36,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 11:53:36,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 11:53:36,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 11:53:36,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 11:53:36,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 11:53:36,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 11:53:36,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 11:53:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:53:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 11:53:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:53:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 11:53:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:53:36,786 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 11:53:37,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:53:37,972 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 11:53:37,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:53:37 BoogieIcfgContainer [2020-09-25 11:53:37,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:53:37,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:53:37,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:53:37,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:53:37,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:53:34" (1/3) ... [2020-09-25 11:53:37,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2917537f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:53:37, skipping insertion in model container [2020-09-25 11:53:37,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:53:35" (2/3) ... [2020-09-25 11:53:37,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2917537f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:53:37, skipping insertion in model container [2020-09-25 11:53:37,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:53:37" (3/3) ... [2020-09-25 11:53:38,000 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 11:53:38,015 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:53:38,035 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:53:38,061 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:53:38,104 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:53:38,104 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:53:38,104 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:53:38,104 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:53:38,104 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:53:38,105 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:53:38,106 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:53:38,106 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:53:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 11:53:38,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 11:53:38,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:53:38,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:53:38,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:53:38,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:53:38,208 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 11:53:38,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:53:38,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812983182] [2020-09-25 11:53:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:53:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:38,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:39,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 11:53:40,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:53:40,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1463 [2020-09-25 11:53:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:53:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:53:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 11:53:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:53:40,397 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 11:53:40,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:53:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:40,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 11:53:40,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:40,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 11:53:40,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:40,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:40,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:40,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 11:53:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:53:40,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:40,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 11:53:40,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:40,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:53:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:40,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:53:40,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:40,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:53:40,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:40,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:40,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:40,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:53:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:40,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:53:40,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:40,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 11:53:40,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:40,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:40,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 11:53:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:40,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:53:40,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:40,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 11:53:40,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:53:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:53:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:40,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:53:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:40,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:53:40,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:40,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 11:53:40,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:53:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:53:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:40,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 11:53:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:40,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:40,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:53:40,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:40,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 11:53:40,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:40,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:53:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 11:53:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:41,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:53:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:41,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:41,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:41,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:53:41,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:53:41,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:41,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:41,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 11:53:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:41,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:41,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:41,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:53:41,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 11:53:41,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:41,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:53:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:53:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:53:41,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812983182] [2020-09-25 11:53:41,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:53:41,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:53:41,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255556844] [2020-09-25 11:53:41,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:53:41,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:53:41,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:53:41,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:53:41,208 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-25 11:53:41,775 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 11:53:43,071 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 11:53:43,295 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 11:53:43,639 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 11:53:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:53:51,176 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-25 11:53:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 11:53:51,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-25 11:53:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:53:51,210 INFO L225 Difference]: With dead ends: 2288 [2020-09-25 11:53:51,210 INFO L226 Difference]: Without dead ends: 1575 [2020-09-25 11:53:51,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-25 11:53:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-25 11:53:51,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-25 11:53:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-25 11:53:51,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-25 11:53:51,476 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-25 11:53:51,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:53:51,477 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-25 11:53:51,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:53:51,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-25 11:53:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 11:53:51,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:53:51,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:53:51,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:53:51,487 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:53:51,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:53:51,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-25 11:53:51,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:53:51,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865629463] [2020-09-25 11:53:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:53:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:51,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:51,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:51,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:53,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:53,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:56,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:56,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 11:53:56,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:53:56,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 11:53:56,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:56,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:56,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:53:56,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 11:53:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 11:53:56,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:56,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:53:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:56,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:56,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:56,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 11:53:56,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:56,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 11:53:56,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:56,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:56,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:53:56,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 11:53:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:56,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:56,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:53:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:53:56,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:56,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:56,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:53:56,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:53:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:56,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:56,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:56,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:53:56,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:56,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:53:56,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:56,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:56,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:56,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:56,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:56,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:53:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:56,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:56,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:56,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:53:56,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:53:56,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:56,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:57,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 11:53:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:53:57,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 11:53:57,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:57,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:57,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:57,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:57,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:53:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:53:57,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 11:53:57,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:57,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:57,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:53:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 11:53:57,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:53:57,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 11:53:57,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:53:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 11:53:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:57,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:53:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:53:57,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 11:53:57,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:57,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:57,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 11:53:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:53:57,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 11:53:57,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:57,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:53:57,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 11:53:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:53:57,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:53:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 11:53:57,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:53:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:53:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:53:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:57,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:53:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:53:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 11:53:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:53:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:53:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:53:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:53:57,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 11:53:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:53:57,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:53:57,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:53:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:53:57,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:53:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:53:57,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:53:57,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:53:57,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:57,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:53:57,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 11:53:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:53:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:53:57,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:53:57,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:53:57,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:53:57,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:53:57,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:53:57,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:53:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:53:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:53:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:53:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:53:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 11:53:57,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865629463] [2020-09-25 11:53:57,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:53:57,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:53:57,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760851254] [2020-09-25 11:53:57,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:53:57,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:53:57,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:53:57,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:53:57,762 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 10 states. [2020-09-25 11:53:59,807 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 11:54:04,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:54:04,576 INFO L93 Difference]: Finished difference Result 3708 states and 4430 transitions. [2020-09-25 11:54:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 11:54:04,583 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-25 11:54:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:54:04,602 INFO L225 Difference]: With dead ends: 3708 [2020-09-25 11:54:04,602 INFO L226 Difference]: Without dead ends: 2992 [2020-09-25 11:54:04,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-09-25 11:54:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2020-09-25 11:54:04,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2629. [2020-09-25 11:54:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2629 states. [2020-09-25 11:54:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 2986 transitions. [2020-09-25 11:54:04,793 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 2986 transitions. Word has length 171 [2020-09-25 11:54:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:54:04,794 INFO L479 AbstractCegarLoop]: Abstraction has 2629 states and 2986 transitions. [2020-09-25 11:54:04,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:54:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 2986 transitions. [2020-09-25 11:54:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 11:54:04,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:54:04,805 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:54:04,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:54:04,806 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:54:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:54:04,806 INFO L82 PathProgramCache]: Analyzing trace with hash -544183953, now seen corresponding path program 1 times [2020-09-25 11:54:04,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:54:04,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663010600] [2020-09-25 11:54:04,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:54:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:04,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:04,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:05,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:05,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:09,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:09,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 11:54:09,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:54:09,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 11:54:09,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:09,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:54:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:54:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 11:54:09,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:10,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:54:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:10,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:10,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 11:54:10,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 11:54:10,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:10,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:54:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 11:54:10,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:10,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 11:54:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:10,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:10,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:54:10,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 11:54:10,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:10,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:10,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:54:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:54:10,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:54:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:54:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:10,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:10,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:54:10,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:54:10,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:10,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:54:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:54:10,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:10,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:54:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:10,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:10,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:54:10,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:10,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:54:10,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:10,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:10,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:54:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:54:10,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:10,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 11:54:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:10,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:10,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:54:10,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:10,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 11:54:10,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:10,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:54:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:54:10,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:10,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:54:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:10,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:10,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:54:10,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:10,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:54:10,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:10,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:10,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:54:10,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:10,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:54:10,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:54:10,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:54:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:10,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:10,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 11:54:10,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 11:54:10,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:10,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:54:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:54:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 11:54:10,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:54:10,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:54:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:10,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:11,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:11,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:54:11,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:11,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 11:54:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:11,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:54:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:54:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:11,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 11:54:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:11,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:11,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:11,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:54:11,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 11:54:11,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:11,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:54:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:54:11,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:11,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 11:54:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:11,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:11,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:11,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 11:54:11,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 11:54:11,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:11,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:54:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 11:54:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:54:11,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:54:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:11,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:11,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:11,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:54:11,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:11,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 11:54:11,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:11,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:54:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:54:11,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:11,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 11:54:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:11,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:11,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:11,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:54:11,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:11,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 11:54:11,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:11,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:54:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 11:54:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:54:11,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:11,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:54:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:11,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:11,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:11,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:54:11,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:54:11,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:11,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:54:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:54:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:54:11,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:11,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 11:54:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:11,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:11,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:54:11,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:54:11,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:54:11,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 11:54:11,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:54:11,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:54:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:54:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:54:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:54:11,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:54:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 11:54:11,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663010600] [2020-09-25 11:54:11,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:54:11,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 11:54:11,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873463996] [2020-09-25 11:54:11,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 11:54:11,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:54:11,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 11:54:11,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-25 11:54:11,580 INFO L87 Difference]: Start difference. First operand 2629 states and 2986 transitions. Second operand 13 states. [2020-09-25 11:54:12,085 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-25 11:54:12,549 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-09-25 11:54:12,977 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-09-25 11:54:15,809 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-25 11:54:16,713 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-09-25 11:54:16,868 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-25 11:54:17,004 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 11:54:17,209 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-09-25 11:54:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:54:22,927 INFO L93 Difference]: Finished difference Result 7076 states and 8230 transitions. [2020-09-25 11:54:22,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 11:54:22,928 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 183 [2020-09-25 11:54:22,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:54:22,948 INFO L225 Difference]: With dead ends: 7076 [2020-09-25 11:54:22,949 INFO L226 Difference]: Without dead ends: 4022 [2020-09-25 11:54:22,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 11:54:22,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2020-09-25 11:54:23,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 3510. [2020-09-25 11:54:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3510 states. [2020-09-25 11:54:23,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 3973 transitions. [2020-09-25 11:54:23,172 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 3973 transitions. Word has length 183 [2020-09-25 11:54:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:54:23,172 INFO L479 AbstractCegarLoop]: Abstraction has 3510 states and 3973 transitions. [2020-09-25 11:54:23,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 11:54:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 3973 transitions. [2020-09-25 11:54:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 11:54:23,182 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:54:23,183 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:54:23,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:54:23,183 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:54:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:54:23,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1921012257, now seen corresponding path program 1 times [2020-09-25 11:54:23,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:54:23,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590655945] [2020-09-25 11:54:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:54:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:54:23,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:54:23,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking...