/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 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 17:50:45,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:50:45,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:50:45,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:50:45,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:50:45,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:50:45,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:50:45,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:50:45,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:50:45,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:50:45,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:50:45,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:50:45,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:50:45,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:50:45,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:50:45,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:50:45,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:50:45,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:50:45,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:50:45,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:50:45,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:50:45,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:50:45,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:50:45,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:50:45,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:50:45,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:50:45,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:50:45,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:50:45,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:50:45,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:50:45,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:50:45,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:50:45,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:50:45,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:50:45,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:50:45,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:50:45,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:50:45,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:50:45,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:50:45,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:50:45,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:50:45,138 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 17:50:45,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:50:45,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:50:45,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:50:45,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:50:45,186 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:50:45,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:50:45,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:50:45,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:50:45,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:50:45,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:50:45,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:50:45,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:50:45,188 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:50:45,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:50:45,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:50:45,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:50:45,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:50:45,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:50:45,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:50:45,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:50:45,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:50:45,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:50:45,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:50:45,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:50:45,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:50:45,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:50:45,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 17:50:45,191 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;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;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;log-additional-information=true; [2020-09-24 17:50:45,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:50:45,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:50:45,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:50:45,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:50:45,630 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:50:45,631 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 17:50:45,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4501dc02/50f422cd9ac04fafbed3a60190a8cde0/FLAG941db1dfd [2020-09-24 17:50:46,580 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:50:46,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 17:50:46,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4501dc02/50f422cd9ac04fafbed3a60190a8cde0/FLAG941db1dfd [2020-09-24 17:50:46,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4501dc02/50f422cd9ac04fafbed3a60190a8cde0 [2020-09-24 17:50:46,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:50:46,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:50:46,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:50:46,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:50:46,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:50:46,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:50:46" (1/1) ... [2020-09-24 17:50:46,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e799f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:46, skipping insertion in model container [2020-09-24 17:50:46,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:50:46" (1/1) ... [2020-09-24 17:50:46,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:50:46,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:50:48,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:50:48,330 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:50:48,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:50:48,743 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:50:48,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48 WrapperNode [2020-09-24 17:50:48,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:50:48,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:50:48,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:50:48,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:50:48,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (1/1) ... [2020-09-24 17:50:48,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (1/1) ... [2020-09-24 17:50:48,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (1/1) ... [2020-09-24 17:50:48,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (1/1) ... [2020-09-24 17:50:48,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (1/1) ... [2020-09-24 17:50:48,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (1/1) ... [2020-09-24 17:50:48,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (1/1) ... [2020-09-24 17:50:48,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:50:48,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:50:48,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:50:48,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:50:48,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (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 17:50:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:50:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:50:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 17:50:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-24 17:50:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-24 17:50:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 17:50:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 17:50:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 17:50:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:50:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 17:50:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 17:50:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 17:50:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 17:50:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 17:50:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 17:50:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 17:50:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 17:50:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-24 17:50:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-24 17:50:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-24 17:50:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-24 17:50:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-24 17:50:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-24 17:50:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-24 17:50:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-24 17:50:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-24 17:50:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-24 17:50:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-24 17:50:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-24 17:50:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-24 17:50:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-24 17:50:49,068 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-24 17:50:49,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 17:50:49,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-24 17:50:49,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:50:49,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-24 17:50:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-24 17:50:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-24 17:50:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-24 17:50:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-24 17:50:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-24 17:50:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-24 17:50:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-24 17:50:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-24 17:50:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-24 17:50:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-24 17:50:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-24 17:50:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-24 17:50:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-24 17:50:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 17:50:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-24 17:50:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-24 17:50:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 17:50:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 17:50:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 17:50:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-24 17:50:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 17:50:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 17:50:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-24 17:50:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-24 17:50:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-24 17:50:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-24 17:50:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-24 17:50:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-24 17:50:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-24 17:50:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-24 17:50:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-24 17:50:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-24 17:50:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 17:50:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 17:50:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 17:50:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 17:50:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:50:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 17:50:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 17:50:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 17:50:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-24 17:50:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:50:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-24 17:50:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-24 17:50:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:50:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-24 17:50:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 17:50:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 17:50:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 17:50:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 17:50:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 17:50:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 17:50:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 17:50:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 17:50:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 17:50:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:50:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 17:50:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:50:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-24 17:50:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 17:50:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:50:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:50:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:50:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 17:50:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 17:50:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 17:50:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 17:50:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 17:50:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 17:50:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 17:50:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-24 17:50:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-24 17:50:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-24 17:50:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-24 17:50:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-24 17:50:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-24 17:50:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-24 17:50:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-24 17:50:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 17:50:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-24 17:50:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-24 17:50:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-24 17:50:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-24 17:50:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-24 17:50:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-24 17:50:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-24 17:50:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-24 17:50:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-24 17:50:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-24 17:50:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:50:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:50:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:50:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-24 17:50:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:50:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-24 17:50:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-24 17:50:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-24 17:50:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-24 17:50:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-24 17:50:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-24 17:50:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-24 17:50:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 17:50:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 17:50:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 17:50:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-24 17:50:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:50:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-24 17:50:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-24 17:50:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-24 17:50:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-24 17:50:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-24 17:50:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-24 17:50:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-24 17:50:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-24 17:50:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 17:50:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-24 17:50:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-24 17:50:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-24 17:50:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-24 17:50:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-24 17:50:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-24 17:50:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-24 17:50:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:50:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:50:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:50:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 17:50:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:50:50,162 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 17:50:50,894 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-24 17:50:51,181 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:50:51,182 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:50:51,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:50:51 BoogieIcfgContainer [2020-09-24 17:50:51,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:50:51,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:50:51,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:50:51,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:50:51,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:50:46" (1/3) ... [2020-09-24 17:50:51,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63817e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:50:51, skipping insertion in model container [2020-09-24 17:50:51,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:48" (2/3) ... [2020-09-24 17:50:51,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63817e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:50:51, skipping insertion in model container [2020-09-24 17:50:51,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:50:51" (3/3) ... [2020-09-24 17:50:51,208 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 17:50:51,219 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:50:51,232 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:50:51,255 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:50:51,295 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:50:51,295 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:50:51,295 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:50:51,295 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:50:51,295 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:50:51,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:50:51,296 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:50:51,296 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:50:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-24 17:50:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 17:50:51,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:50:51,358 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 17:50:51,359 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:50:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:50:51,367 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-24 17:50:51,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:50:51,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112225304] [2020-09-24 17:50:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:50:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:50:52,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:53,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:55,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:58,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:50:58,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 17:50:58,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:50:58,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6949 [2020-09-24 17:50:58,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:50:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:50:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 17:50:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:50:58,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:50:59,321 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:50:59,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:50:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:50:59,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:59,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:50:59,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 17:50:59,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:50:59,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 17:50:59,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:50:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:50:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:50:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:50:59,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:50:59,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 17:50:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:50:59,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:59,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:50:59,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:50:59,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:50:59,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 17:50:59,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:50:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:50:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:50:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:50:59,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:50:59,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:50:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:50:59,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:59,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:50:59,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:50:59,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:50:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 17:50:59,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:50:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:50:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:50:59,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:50:59,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:50:59,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:50:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:50:59,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:59,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:50:59,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:50:59,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:50:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 17:50:59,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:50:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:50:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:50:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:50:59,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:50:59,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 17:50:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:50:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:50:59,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:00,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:00,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:00,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:51:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 17:51:00,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:00,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:00,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:00,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:00,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 17:51:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:00,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:00,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:00,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:00,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 17:51:00,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:51:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 17:51:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:51:00,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:00,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 17:51:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:00,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:00,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:00,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:51:00,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 17:51:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 17:51:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:00,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:00,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:00,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:00,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:00,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:00,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 17:51:00,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:00,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:00,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 17:51:00,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112225304] [2020-09-24 17:51:00,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:00,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:51:00,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163559407] [2020-09-24 17:51:00,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:51:00,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:00,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:51:00,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:51:00,385 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 7 states. [2020-09-24 17:51:00,675 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 17:51:01,773 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 17:51:02,062 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-24 17:51:02,362 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:51:07,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:07,944 INFO L93 Difference]: Finished difference Result 2166 states and 2514 transitions. [2020-09-24 17:51:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:51:07,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-24 17:51:07,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:07,975 INFO L225 Difference]: With dead ends: 2166 [2020-09-24 17:51:07,975 INFO L226 Difference]: Without dead ends: 1174 [2020-09-24 17:51:07,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:51:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2020-09-24 17:51:08,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1062. [2020-09-24 17:51:08,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-09-24 17:51:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1184 transitions. [2020-09-24 17:51:08,173 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1184 transitions. Word has length 190 [2020-09-24 17:51:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:08,174 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1184 transitions. [2020-09-24 17:51:08,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:51:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1184 transitions. [2020-09-24 17:51:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 17:51:08,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:08,181 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] [2020-09-24 17:51:08,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:51:08,182 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:08,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:08,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1971199252, now seen corresponding path program 1 times [2020-09-24 17:51:08,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:08,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421287048] [2020-09-24 17:51:08,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:08,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:08,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:09,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:09,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 17:51:09,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:51:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1106 [2020-09-24 17:51:09,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 17:51:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 17:51:09,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:10,087 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:51:10,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:10,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:10,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:10,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 17:51:10,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:10,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-24 17:51:10,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:10,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:10,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 17:51:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:10,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 17:51:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:10,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:10,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:10,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:51:10,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:10,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 17:51:10,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:10,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:10,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:10,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:51:10,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:51:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:51:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:10,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:10,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:10,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:51:10,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 17:51:10,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:10,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:10,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:10,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:51:10,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:51:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:10,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:10,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:10,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:51:10,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:10,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 17:51:10,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:10,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:51:10,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:10,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 17:51:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:10,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:10,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:10,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:10,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 17:51:10,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:10,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:11,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 17:51:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:11,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:11,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:11,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:11,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:11,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 17:51:11,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:11,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:11,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 17:51:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:11,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:11,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:11,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:51:11,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:11,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 17:51:11,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:51:11,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:11,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:11,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:11,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:11,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:11,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:11,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 17:51:11,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:11,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 17:51:11,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421287048] [2020-09-24 17:51:11,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:11,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:51:11,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231192469] [2020-09-24 17:51:11,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:51:11,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:11,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:51:11,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:51:11,445 INFO L87 Difference]: Start difference. First operand 1062 states and 1184 transitions. Second operand 7 states. [2020-09-24 17:51:11,673 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 17:51:12,347 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 17:51:12,709 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:51:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:17,885 INFO L93 Difference]: Finished difference Result 1174 states and 1322 transitions. [2020-09-24 17:51:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:51:17,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-09-24 17:51:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:17,895 INFO L225 Difference]: With dead ends: 1174 [2020-09-24 17:51:17,895 INFO L226 Difference]: Without dead ends: 1171 [2020-09-24 17:51:17,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:51:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2020-09-24 17:51:17,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1061. [2020-09-24 17:51:17,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-09-24 17:51:17,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1182 transitions. [2020-09-24 17:51:17,976 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1182 transitions. Word has length 198 [2020-09-24 17:51:17,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:17,977 INFO L479 AbstractCegarLoop]: Abstraction has 1061 states and 1182 transitions. [2020-09-24 17:51:17,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:51:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1182 transitions. [2020-09-24 17:51:17,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 17:51:17,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:17,981 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] [2020-09-24 17:51:17,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:51:17,982 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:17,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:17,982 INFO L82 PathProgramCache]: Analyzing trace with hash -978144985, now seen corresponding path program 1 times [2020-09-24 17:51:17,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:17,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894024159] [2020-09-24 17:51:17,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:18,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:18,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:18,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-24 17:51:18,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:51:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 922 [2020-09-24 17:51:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 17:51:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 17:51:18,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:19,624 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:51:19,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 17:51:20,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-24 17:51:20,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:20,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 17:51:20,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:20,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 17:51:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:20,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:51:20,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 17:51:20,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:51:20,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:20,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:51:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:20,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:51:20,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 17:51:20,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:51:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:20,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:51:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:20,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:51:20,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 17:51:20,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:51:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:20,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 17:51:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:20,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 17:51:20,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 17:51:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:20,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:20,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 17:51:20,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:20,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 17:51:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:20,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:51:20,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 17:51:20,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:51:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:20,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:20,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:20,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:20,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 17:51:20,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 17:51:20,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894024159] [2020-09-24 17:51:20,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:20,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:51:20,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697742947] [2020-09-24 17:51:20,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:51:20,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:20,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:51:20,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:51:20,917 INFO L87 Difference]: Start difference. First operand 1061 states and 1182 transitions. Second operand 7 states. [2020-09-24 17:51:21,192 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 17:51:21,959 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 17:51:22,340 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:51:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:27,569 INFO L93 Difference]: Finished difference Result 1173 states and 1320 transitions. [2020-09-24 17:51:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:51:27,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-24 17:51:27,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:27,578 INFO L225 Difference]: With dead ends: 1173 [2020-09-24 17:51:27,578 INFO L226 Difference]: Without dead ends: 1170 [2020-09-24 17:51:27,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:51:27,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-09-24 17:51:27,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1060. [2020-09-24 17:51:27,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-09-24 17:51:27,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1180 transitions. [2020-09-24 17:51:27,652 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1180 transitions. Word has length 199 [2020-09-24 17:51:27,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:27,653 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1180 transitions. [2020-09-24 17:51:27,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:51:27,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1180 transitions. [2020-09-24 17:51:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 17:51:27,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:27,658 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] [2020-09-24 17:51:27,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:51:27,658 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:27,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:27,658 INFO L82 PathProgramCache]: Analyzing trace with hash -258228913, now seen corresponding path program 1 times [2020-09-24 17:51:27,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:27,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50055291] [2020-09-24 17:51:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:27,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:28,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:28,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:28,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-24 17:51:28,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:51:28,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 849 [2020-09-24 17:51:28,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:28,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 17:51:28,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 17:51:28,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:29,127 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:51:29,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:29,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:29,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:29,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 17:51:29,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:29,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-24 17:51:29,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 17:51:29,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:29,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 17:51:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:29,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:29,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:29,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:51:29,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:29,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 17:51:29,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:51:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:29,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:51:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:29,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:29,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:29,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:51:29,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:29,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 17:51:29,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:51:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:29,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:51:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:29,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:29,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:29,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:51:29,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:29,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 17:51:29,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:29,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:51:29,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:29,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 17:51:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:29,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:29,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:29,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:29,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:29,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 17:51:29,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 17:51:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:29,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:29,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:29,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:29,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 17:51:29,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:29,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 17:51:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:30,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:30,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:30,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:51:30,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:30,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 17:51:30,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:51:30,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:30,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:30,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:30,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:30,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:30,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 17:51:30,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:30,208 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 17:51:30,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50055291] [2020-09-24 17:51:30,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:30,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:51:30,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744655326] [2020-09-24 17:51:30,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:51:30,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:30,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:51:30,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:51:30,212 INFO L87 Difference]: Start difference. First operand 1060 states and 1180 transitions. Second operand 6 states. [2020-09-24 17:51:30,432 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 17:51:31,153 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 17:51:31,526 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:51:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:36,277 INFO L93 Difference]: Finished difference Result 1172 states and 1318 transitions. [2020-09-24 17:51:36,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:51:36,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-09-24 17:51:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:36,285 INFO L225 Difference]: With dead ends: 1172 [2020-09-24 17:51:36,285 INFO L226 Difference]: Without dead ends: 1169 [2020-09-24 17:51:36,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:51:36,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-09-24 17:51:36,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1059. [2020-09-24 17:51:36,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-09-24 17:51:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1178 transitions. [2020-09-24 17:51:36,370 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1178 transitions. Word has length 200 [2020-09-24 17:51:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:36,370 INFO L479 AbstractCegarLoop]: Abstraction has 1059 states and 1178 transitions. [2020-09-24 17:51:36,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:51:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1178 transitions. [2020-09-24 17:51:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 17:51:36,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:36,374 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] [2020-09-24 17:51:36,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:51:36,374 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:36,375 INFO L82 PathProgramCache]: Analyzing trace with hash 584337706, now seen corresponding path program 1 times [2020-09-24 17:51:36,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:36,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262187607] [2020-09-24 17:51:36,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking...