/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=DEEPEST --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 [2020-09-25 01:39:53,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:39:53,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:39:53,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:39:53,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:39:53,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:39:53,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:39:53,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:39:53,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:39:53,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:39:53,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:39:53,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:39:53,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:39:53,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:39:53,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:39:53,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:39:53,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:39:53,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:39:53,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:39:53,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:39:53,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:39:53,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:39:53,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:39:53,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:39:53,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:39:53,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:39:53,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:39:53,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:39:53,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:39:53,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:39:53,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:39:53,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:39:53,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:39:53,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:39:53,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:39:53,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:39:53,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:39:53,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:39:53,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:39:53,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:39:53,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:39:53,307 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 01:39:53,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:39:53,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:39:53,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:39:53,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:39:53,362 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:39:53,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:39:53,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:39:53,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:39:53,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:39:53,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:39:53,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:39:53,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:39:53,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:39:53,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:39:53,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:39:53,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:39:53,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:39:53,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:39:53,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:39:53,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:39:53,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:39:53,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:39:53,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:39:53,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:39:53,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:39:53,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:39:53,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 01:39:53,369 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:39:53,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:39:53,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:39:53,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:39:53,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:39:53,874 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:39:53,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 01:39:53,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3ff44c01/d1921e1a661545448352183edc3d33ad/FLAGb6bfd9358 [2020-09-25 01:39:54,757 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:39:54,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 01:39:54,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3ff44c01/d1921e1a661545448352183edc3d33ad/FLAGb6bfd9358 [2020-09-25 01:39:55,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3ff44c01/d1921e1a661545448352183edc3d33ad [2020-09-25 01:39:55,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:39:55,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:39:55,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:39:55,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:39:55,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:39:55,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:55" (1/1) ... [2020-09-25 01:39:55,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b821aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:55, skipping insertion in model container [2020-09-25 01:39:55,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:55" (1/1) ... [2020-09-25 01:39:55,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:39:55,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:39:57,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:39:57,131 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:39:57,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:39:57,615 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:39:57,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57 WrapperNode [2020-09-25 01:39:57,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:39:57,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:39:57,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:39:57,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:39:57,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (1/1) ... [2020-09-25 01:39:57,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (1/1) ... [2020-09-25 01:39:57,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (1/1) ... [2020-09-25 01:39:57,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (1/1) ... [2020-09-25 01:39:57,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (1/1) ... [2020-09-25 01:39:57,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (1/1) ... [2020-09-25 01:39:57,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (1/1) ... [2020-09-25 01:39:57,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:39:57,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:39:57,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:39:57,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:39:57,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (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 01:39:57,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:39:57,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:39:57,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 01:39:57,917 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-25 01:39:57,918 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-25 01:39:57,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 01:39:57,919 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 01:39:57,919 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 01:39:57,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:39:57,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 01:39:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 01:39:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 01:39:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 01:39:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 01:39:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 01:39:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 01:39:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 01:39:57,924 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-25 01:39:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-25 01:39:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-25 01:39:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-25 01:39:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-25 01:39:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-25 01:39:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-25 01:39:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-25 01:39:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-25 01:39:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-25 01:39:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-25 01:39:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-25 01:39:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-25 01:39:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-25 01:39:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-25 01:39:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 01:39:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-25 01:39:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:39:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-25 01:39:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-25 01:39:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-25 01:39:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-25 01:39:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-25 01:39:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-25 01:39:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-25 01:39:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-25 01:39:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-25 01:39:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-25 01:39:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-25 01:39:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-25 01:39:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-25 01:39:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-25 01:39:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 01:39:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-25 01:39:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-25 01:39:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-25 01:39:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 01:39:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 01:39:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-25 01:39:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 01:39:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 01:39:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-25 01:39:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-25 01:39:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-25 01:39:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-25 01:39:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-25 01:39:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-25 01:39:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-25 01:39:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-25 01:39:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-25 01:39:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-25 01:39:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-25 01:39:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 01:39:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 01:39:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 01:39:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:39:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 01:39:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 01:39:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-25 01:39:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-25 01:39:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:39:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-25 01:39:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-25 01:39:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:39:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-25 01:39:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 01:39:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 01:39:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-25 01:39:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 01:39:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 01:39:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 01:39:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 01:39:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 01:39:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 01:39:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:39:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 01:39:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:39:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-25 01:39:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 01:39:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:39:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:39:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:39:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 01:39:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 01:39:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 01:39:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 01:39:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 01:39:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 01:39:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 01:39:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-25 01:39:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-25 01:39:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-25 01:39:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-25 01:39:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-25 01:39:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-25 01:39:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-25 01:39:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-25 01:39:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 01:39:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-25 01:39:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-25 01:39:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-25 01:39:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-25 01:39:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-25 01:39:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-25 01:39:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-25 01:39:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-25 01:39:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-25 01:39:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-25 01:39:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:39:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:39:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:39:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-25 01:39:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:39:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-25 01:39:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-25 01:39:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-25 01:39:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-25 01:39:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-25 01:39:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-25 01:39:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-25 01:39:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 01:39:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 01:39:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 01:39:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-25 01:39:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:39:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-25 01:39:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-25 01:39:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-25 01:39:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-25 01:39:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-25 01:39:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-25 01:39:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-25 01:39:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-25 01:39:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 01:39:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-25 01:39:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-25 01:39:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-25 01:39:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-25 01:39:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-25 01:39:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-25 01:39:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-25 01:39:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:39:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:39:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:39:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 01:39:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:39:59,067 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 01:39:59,881 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-25 01:40:00,215 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:40:00,216 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 01:40:00,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:40:00 BoogieIcfgContainer [2020-09-25 01:40:00,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:40:00,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:40:00,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:40:00,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:40:00,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:55" (1/3) ... [2020-09-25 01:40:00,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962b8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:40:00, skipping insertion in model container [2020-09-25 01:40:00,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:57" (2/3) ... [2020-09-25 01:40:00,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962b8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:40:00, skipping insertion in model container [2020-09-25 01:40:00,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:40:00" (3/3) ... [2020-09-25 01:40:00,249 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 [2020-09-25 01:40:00,266 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:40:00,283 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:40:00,315 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:40:00,373 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:40:00,374 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:40:00,374 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:40:00,375 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:40:00,375 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:40:00,375 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:40:00,375 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:40:00,376 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:40:00,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-25 01:40:00,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:40:00,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:00,482 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] [2020-09-25 01:40:00,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:00,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:00,498 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-25 01:40:00,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:00,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479642323] [2020-09-25 01:40:00,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:01,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:04,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:06,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:06,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 01:40:06,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:40:06,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5108 [2020-09-25 01:40:06,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 01:40:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 01:40:06,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:40:06,857 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:40:06,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:06,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 01:40:07,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 01:40:07,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:07,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 01:40:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:07,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 01:40:07,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:07,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:40:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 01:40:07,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:40:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:40:07,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 01:40:07,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:07,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:07,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:07,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:40:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:07,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:07,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 01:40:07,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:40:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 01:40:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:40:07,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 01:40:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:07,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 01:40:07,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:40:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 01:40:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:40:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 01:40:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:40:07,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 01:40:07,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 01:40:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:07,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:07,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 01:40:07,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:07,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,951 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 01:40:07,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479642323] [2020-09-25 01:40:07,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:07,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:40:07,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647035734] [2020-09-25 01:40:07,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:40:07,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:07,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:40:07,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:40:07,995 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 8 states. [2020-09-25 01:40:08,490 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 01:40:09,534 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 01:40:09,970 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:40:10,571 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 01:40:10,863 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-09-25 01:40:11,184 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:40:11,515 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:40:17,049 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 01:40:17,366 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 01:40:17,664 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:40:17,976 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:40:22,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:22,667 INFO L93 Difference]: Finished difference Result 3118 states and 3648 transitions. [2020-09-25 01:40:22,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 01:40:22,670 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-25 01:40:22,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:22,710 INFO L225 Difference]: With dead ends: 3118 [2020-09-25 01:40:22,711 INFO L226 Difference]: Without dead ends: 2120 [2020-09-25 01:40:22,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:40:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-09-25 01:40:23,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1926. [2020-09-25 01:40:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2020-09-25 01:40:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2158 transitions. [2020-09-25 01:40:23,036 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2158 transitions. Word has length 190 [2020-09-25 01:40:23,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:23,037 INFO L479 AbstractCegarLoop]: Abstraction has 1926 states and 2158 transitions. [2020-09-25 01:40:23,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:40:23,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2158 transitions. [2020-09-25 01:40:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 01:40:23,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:23,043 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:23,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:40:23,044 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:23,044 INFO L82 PathProgramCache]: Analyzing trace with hash 216367441, now seen corresponding path program 1 times [2020-09-25 01:40:23,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:23,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917771571] [2020-09-25 01:40:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:23,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-25 01:40:23,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-09-25 01:40:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 01:40:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-25 01:40:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:24,614 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:40:24,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:24,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:25,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:25,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 01:40:25,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-25 01:40:25,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:25,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:25,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 01:40:25,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:25,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 01:40:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:25,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:25,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:25,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:25,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 01:40:25,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 01:40:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:25,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:40:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:25,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:25,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:25,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:25,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:25,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 01:40:25,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 01:40:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:40:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:25,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:25,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:25,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:40:25,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 01:40:25,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:40:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:40:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:25,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:25,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:25,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:25,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:25,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 01:40:25,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:25,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:25,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 01:40:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:25,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:40:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:25,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:25,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:25,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:25,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:25,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 01:40:25,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:25,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 01:40:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:25,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 01:40:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:25,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:25,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:25,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:40:25,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:25,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 01:40:25,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 01:40:25,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:26,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:26,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:26,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:26,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 01:40:26,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 01:40:26,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917771571] [2020-09-25 01:40:26,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:26,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:40:26,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443849592] [2020-09-25 01:40:26,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:40:26,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:26,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:40:26,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:26,229 INFO L87 Difference]: Start difference. First operand 1926 states and 2158 transitions. Second operand 7 states. [2020-09-25 01:40:26,474 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 01:40:27,258 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 01:40:27,685 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:40:28,256 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:40:33,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:33,409 INFO L93 Difference]: Finished difference Result 2119 states and 2396 transitions. [2020-09-25 01:40:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:40:33,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-25 01:40:33,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:33,427 INFO L225 Difference]: With dead ends: 2119 [2020-09-25 01:40:33,427 INFO L226 Difference]: Without dead ends: 2116 [2020-09-25 01:40:33,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-25 01:40:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2020-09-25 01:40:33,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1925. [2020-09-25 01:40:33,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1925 states. [2020-09-25 01:40:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2156 transitions. [2020-09-25 01:40:33,558 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2156 transitions. Word has length 212 [2020-09-25 01:40:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:33,559 INFO L479 AbstractCegarLoop]: Abstraction has 1925 states and 2156 transitions. [2020-09-25 01:40:33,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:40:33,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2156 transitions. [2020-09-25 01:40:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 01:40:33,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:33,563 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:33,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:40:33,564 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:33,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:33,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1883054238, now seen corresponding path program 1 times [2020-09-25 01:40:33,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:33,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277347516] [2020-09-25 01:40:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:33,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:34,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:34,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-25 01:40:34,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-25 01:40:34,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 01:40:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-25 01:40:34,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:35,033 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:40:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 01:40:35,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:35,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 01:40:35,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 01:40:35,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:35,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 01:40:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:35,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:35,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 01:40:35,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:35,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:35,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 01:40:35,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:35,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:40:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:35,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:35,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 01:40:35,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 01:40:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:35,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:40:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:40:35,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:35,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 01:40:35,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:35,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:35,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:40:35,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:35,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:40:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:36,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:36,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:36,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:36,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 01:40:36,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 01:40:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:36,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:40:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:36,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:36,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:36,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:36,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:40:36,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 01:40:36,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:36,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 01:40:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:36,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:36,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:40:36,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:40:36,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:36,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:36,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 01:40:36,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:36,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:36,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:36,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:36,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:36,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 01:40:36,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:36,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:36,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 01:40:36,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277347516] [2020-09-25 01:40:36,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:36,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:40:36,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044797280] [2020-09-25 01:40:36,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:40:36,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:36,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:40:36,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:36,588 INFO L87 Difference]: Start difference. First operand 1925 states and 2156 transitions. Second operand 7 states. [2020-09-25 01:40:36,878 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 01:40:37,681 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 01:40:38,095 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:40:38,647 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:40:44,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:44,053 INFO L93 Difference]: Finished difference Result 2118 states and 2394 transitions. [2020-09-25 01:40:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:40:44,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-09-25 01:40:44,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:44,068 INFO L225 Difference]: With dead ends: 2118 [2020-09-25 01:40:44,068 INFO L226 Difference]: Without dead ends: 2115 [2020-09-25 01:40:44,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-25 01:40:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2020-09-25 01:40:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1924. [2020-09-25 01:40:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2020-09-25 01:40:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2154 transitions. [2020-09-25 01:40:44,245 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2154 transitions. Word has length 213 [2020-09-25 01:40:44,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:44,246 INFO L479 AbstractCegarLoop]: Abstraction has 1924 states and 2154 transitions. [2020-09-25 01:40:44,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:40:44,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2154 transitions. [2020-09-25 01:40:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-25 01:40:44,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:44,250 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:44,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:40:44,251 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:44,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:44,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1754355316, now seen corresponding path program 1 times [2020-09-25 01:40:44,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:44,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446185636] [2020-09-25 01:40:44,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:44,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking...