/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=LOWLEXORDER --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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:19:51,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:19:51,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:19:51,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:19:51,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:19:51,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:19:51,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:19:51,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:19:51,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:19:51,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:19:51,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:19:51,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:19:51,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:19:51,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:19:51,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:19:51,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:19:51,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:19:51,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:19:51,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:19:51,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:19:51,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:19:51,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:19:51,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:19:51,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:19:51,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:19:51,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:19:51,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:19:51,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:19:51,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:19:51,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:19:51,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:19:51,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:19:51,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:19:51,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:19:51,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:19:51,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:19:51,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:19:51,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:19:51,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:19:51,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:19:51,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:19:51,517 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 [2020-09-24 22:19:51,560 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:19:51,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:19:51,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:19:51,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:19:51,563 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:19:51,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:19:51,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:19:51,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:19:51,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:19:51,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:19:51,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:19:51,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:19:51,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:19:51,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:19:51,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:19:51,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:19:51,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:19:51,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:19:51,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:19:51,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:19:51,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:19:51,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:19:51,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:19:51,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:19:51,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:19:51,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:19:51,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 22:19:51,569 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 22:19:51,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:19:52,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:19:52,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:19:52,025 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:19:52,025 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:19:52,027 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 22:19:52,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec10b8c3e/cf312fc3e0c84c15bcfe1a0d581cc011/FLAGaf3c6a209 [2020-09-24 22:19:52,901 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:19:52,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 22:19:52,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec10b8c3e/cf312fc3e0c84c15bcfe1a0d581cc011/FLAGaf3c6a209 [2020-09-24 22:19:52,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec10b8c3e/cf312fc3e0c84c15bcfe1a0d581cc011 [2020-09-24 22:19:52,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:19:52,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:19:52,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:19:52,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:19:52,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:19:52,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:19:52" (1/1) ... [2020-09-24 22:19:53,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fef75e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:53, skipping insertion in model container [2020-09-24 22:19:53,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:19:52" (1/1) ... [2020-09-24 22:19:53,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:19:53,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:19:54,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:19:54,436 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:19:54,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:19:54,758 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:19:54,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54 WrapperNode [2020-09-24 22:19:54,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:19:54,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:19:54,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:19:54,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:19:54,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (1/1) ... [2020-09-24 22:19:54,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (1/1) ... [2020-09-24 22:19:54,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (1/1) ... [2020-09-24 22:19:54,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (1/1) ... [2020-09-24 22:19:54,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (1/1) ... [2020-09-24 22:19:54,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (1/1) ... [2020-09-24 22:19:54,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (1/1) ... [2020-09-24 22:19:54,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:19:54,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:19:54,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:19:54,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:19:54,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (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 [2020-09-24 22:19:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:19:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 22:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-24 22:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-24 22:19:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 22:19:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 22:19:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 22:19:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:19:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 22:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 22:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 22:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 22:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 22:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 22:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 22:19:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 22:19:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-24 22:19:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-24 22:19:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-24 22:19:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-24 22:19:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-24 22:19:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-24 22:19:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-24 22:19:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-24 22:19:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-24 22:19:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-24 22:19:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-24 22:19:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-24 22:19:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-24 22:19:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-24 22:19:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-24 22:19:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 22:19:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-24 22:19:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:19:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-24 22:19:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-24 22:19:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-24 22:19:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-24 22:19:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-24 22:19:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-24 22:19:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-24 22:19:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-24 22:19:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-24 22:19:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-24 22:19:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-24 22:19:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-24 22:19:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-24 22:19:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-24 22:19:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 22:19:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-24 22:19:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-24 22:19:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 22:19:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 22:19:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 22:19:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-24 22:19:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 22:19:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 22:19:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-24 22:19:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-24 22:19:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-24 22:19:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-24 22:19:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-24 22:19:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-24 22:19:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-24 22:19:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-24 22:19:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-24 22:19:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-24 22:19:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 22:19:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 22:19:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 22:19:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 22:19:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:19:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 22:19:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 22:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 22:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-24 22:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-24 22:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-24 22:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-24 22:19:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 22:19:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 22:19:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 22:19:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 22:19:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 22:19:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 22:19:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 22:19:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 22:19:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 22:19:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:19:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 22:19:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:19:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-24 22:19:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 22:19:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:19:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:19:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:19:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 22:19:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 22:19:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 22:19:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 22:19:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 22:19:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 22:19:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 22:19:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-24 22:19:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-24 22:19:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-24 22:19:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-24 22:19:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-24 22:19:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-24 22:19:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-24 22:19:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-24 22:19:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 22:19:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-24 22:19:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-24 22:19:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-24 22:19:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-24 22:19:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-24 22:19:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-24 22:19:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-24 22:19:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-24 22:19:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-24 22:19:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-24 22:19:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:19:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:19:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:19:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-24 22:19:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:19:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-24 22:19:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-24 22:19:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-24 22:19:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-24 22:19:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-24 22:19:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-24 22:19:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-24 22:19:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 22:19:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 22:19:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 22:19:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-24 22:19:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:19:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-24 22:19:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-24 22:19:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-24 22:19:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-24 22:19:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-24 22:19:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-24 22:19:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-24 22:19:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-24 22:19:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 22:19:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-24 22:19:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-24 22:19:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-24 22:19:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-24 22:19:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-24 22:19:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-24 22:19:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-24 22:19:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:19:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:19:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:19:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 22:19:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:19:56,978 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 22:19:57,880 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-24 22:19:58,270 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:19:58,270 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:19:58,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:19:58 BoogieIcfgContainer [2020-09-24 22:19:58,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:19:58,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:19:58,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:19:58,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:19:58,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:19:52" (1/3) ... [2020-09-24 22:19:58,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1823523b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:19:58, skipping insertion in model container [2020-09-24 22:19:58,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:54" (2/3) ... [2020-09-24 22:19:58,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1823523b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:19:58, skipping insertion in model container [2020-09-24 22:19:58,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:19:58" (3/3) ... [2020-09-24 22:19:58,298 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 22:19:58,310 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:19:58,323 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:19:58,343 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:19:58,377 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:19:58,377 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:19:58,377 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:19:58,377 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:19:58,377 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:19:58,378 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:19:58,378 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:19:58,378 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:19:58,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-24 22:19:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 22:19:58,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:19:58,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:19:58,443 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:19:58,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:19:58,451 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-24 22:19:58,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:19:58,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532804113] [2020-09-24 22:19:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:19:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:59,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:59,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:02,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:03,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:03,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 22:20:03,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:20:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 22:20:03,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 22:20:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 22:20:03,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:20:04,953 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:20:04,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:05,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:05,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:05,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 22:20:05,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:05,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-09-24 22:20:05,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 22:20:05,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:05,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 22:20:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:05,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:05,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:05,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 22:20:05,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:05,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 22:20:05,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:05,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 22:20:05,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:05,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:20:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:05,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:05,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:05,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 22:20:05,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:05,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 22:20:05,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 22:20:05,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:05,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 22:20:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:05,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:05,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:05,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:20:05,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:20:05,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:20:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:05,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 22:20:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:06,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:06,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:06,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 22:20:06,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:06,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:06,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:06,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 22:20:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:06,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:06,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:06,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 22:20:06,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:06,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:20:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:06,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:06,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:20:06,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 22:20:06,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:20:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:06,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:06,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:06,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 22:20:06,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 22:20:06,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532804113] [2020-09-24 22:20:06,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:06,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:20:06,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683819890] [2020-09-24 22:20:06,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:20:06,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:06,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:20:06,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:20:06,912 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 7 states. [2020-09-24 22:20:07,302 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:20:08,251 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 22:20:08,745 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:20:15,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:15,819 INFO L93 Difference]: Finished difference Result 2313 states and 2731 transitions. [2020-09-24 22:20:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:20:15,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-24 22:20:15,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:15,861 INFO L225 Difference]: With dead ends: 2313 [2020-09-24 22:20:15,861 INFO L226 Difference]: Without dead ends: 1310 [2020-09-24 22:20:15,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:20:15,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2020-09-24 22:20:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1058. [2020-09-24 22:20:16,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1058 states. [2020-09-24 22:20:16,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1178 transitions. [2020-09-24 22:20:16,088 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1178 transitions. Word has length 190 [2020-09-24 22:20:16,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:16,090 INFO L479 AbstractCegarLoop]: Abstraction has 1058 states and 1178 transitions. [2020-09-24 22:20:16,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:20:16,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1178 transitions. [2020-09-24 22:20:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 22:20:16,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:16,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:20:16,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:20:16,097 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:16,098 INFO L82 PathProgramCache]: Analyzing trace with hash 358410787, now seen corresponding path program 1 times [2020-09-24 22:20:16,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:16,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655113067] [2020-09-24 22:20:16,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:16,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:16,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:16,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:21,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:21,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 22:20:21,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:20:21,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-09-24 22:20:21,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 22:20:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 22:20:21,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:22,010 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:20:22,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:22,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:22,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 22:20:22,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-24 22:20:22,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 22:20:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:22,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 22:20:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:22,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:22,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:22,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:20:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:22,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:22,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:22,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 22:20:22,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:22,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:20:22,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:22,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 22:20:22,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:20:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 22:20:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:22,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:22,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:22,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:20:22,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:22,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 22:20:22,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:22,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:22,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:20:22,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:20:22,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 22:20:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:22,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:22,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:23,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:23,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:23,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:23,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 22:20:23,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:23,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:23,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 22:20:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:23,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:23,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:23,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:23,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-24 22:20:23,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:23,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:23,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:20:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:23,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:23,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:23,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:20:23,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:20:23,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:20:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:23,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:23,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:23,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:23,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:23,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:23,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 22:20:23,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:23,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 22:20:23,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655113067] [2020-09-24 22:20:23,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:23,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:20:23,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055585136] [2020-09-24 22:20:23,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:20:23,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:23,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:20:23,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:20:23,596 INFO L87 Difference]: Start difference. First operand 1058 states and 1178 transitions. Second operand 7 states. [2020-09-24 22:20:23,918 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:20:24,880 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 22:20:25,310 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:20:31,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:31,472 INFO L93 Difference]: Finished difference Result 1312 states and 1534 transitions. [2020-09-24 22:20:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:20:31,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-09-24 22:20:31,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:31,483 INFO L225 Difference]: With dead ends: 1312 [2020-09-24 22:20:31,483 INFO L226 Difference]: Without dead ends: 1309 [2020-09-24 22:20:31,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:20:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2020-09-24 22:20:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1057. [2020-09-24 22:20:31,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-09-24 22:20:31,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1176 transitions. [2020-09-24 22:20:31,566 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1176 transitions. Word has length 191 [2020-09-24 22:20:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:31,567 INFO L479 AbstractCegarLoop]: Abstraction has 1057 states and 1176 transitions. [2020-09-24 22:20:31,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:20:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1176 transitions. [2020-09-24 22:20:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 22:20:31,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:31,571 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:20:31,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:20:31,572 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:31,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:31,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1774672941, now seen corresponding path program 1 times [2020-09-24 22:20:31,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:31,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756683300] [2020-09-24 22:20:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:31,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:31,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:32,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:36,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:36,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-24 22:20:36,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:20:36,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-09-24 22:20:36,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:20:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 22:20:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:37,563 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:20:37,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:37,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:37,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:37,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 22:20:37,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:37,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-24 22:20:37,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 22:20:37,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:20:38,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 22:20:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:38,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:38,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 22:20:38,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:38,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 22:20:38,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:38,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 22:20:38,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:38,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:20:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:38,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:38,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 22:20:38,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:38,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:20:38,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 22:20:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:38,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 22:20:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:38,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:38,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:20:38,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:38,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 22:20:38,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:20:38,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 22:20:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:38,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:38,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:38,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:38,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-24 22:20:38,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:38,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:38,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 22:20:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:38,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:38,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:38,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:38,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 22:20:38,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:38,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:38,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:38,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:20:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:38,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:38,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:20:38,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 22:20:38,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:20:38,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:38,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:38,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:38,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:38,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:38,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 22:20:38,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:38,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 22:20:38,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756683300] [2020-09-24 22:20:38,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:38,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:20:38,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756518324] [2020-09-24 22:20:38,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:20:38,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:38,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:20:38,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:20:38,993 INFO L87 Difference]: Start difference. First operand 1057 states and 1176 transitions. Second operand 6 states. [2020-09-24 22:20:39,329 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:20:40,149 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 22:20:40,593 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 189