/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 interpolation-heuristic=FIRST --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 16:39:24,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:39:24,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:39:24,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:39:24,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:39:24,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:39:24,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:39:24,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:39:24,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:39:24,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:39:24,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:39:24,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:39:24,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:39:24,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:39:24,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:39:24,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:39:24,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:39:24,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:39:24,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:39:24,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:39:24,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:39:24,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:39:24,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:39:24,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:39:24,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:39:24,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:39:24,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:39:24,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:39:24,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:39:24,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:39:24,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:39:24,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:39:24,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:39:24,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:39:24,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:39:24,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:39:24,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:39:24,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:39:24,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:39:24,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:39:24,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:39:24,729 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 16:39:24,755 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:39:24,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:39:24,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:39:24,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:39:24,757 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:39:24,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:39:24,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:39:24,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:39:24,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:39:24,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:39:24,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:39:24,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:39:24,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:39:24,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:39:24,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:39:24,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:39:24,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:39:24,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:39:24,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:39:24,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:39:24,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:39:24,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:39:24,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:39:24,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:39:24,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:39:24,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:39:24,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 16:39:24,762 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:39:25,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:39:25,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:39:25,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:39:25,285 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:39:25,285 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:39:25,286 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 16:39:25,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d12292be/6b5a151a76974a9cb5c136e26334952c/FLAG9bf9ecbb2 [2020-09-24 16:39:26,189 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:39:26,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 16:39:26,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d12292be/6b5a151a76974a9cb5c136e26334952c/FLAG9bf9ecbb2 [2020-09-24 16:39:26,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d12292be/6b5a151a76974a9cb5c136e26334952c [2020-09-24 16:39:26,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:39:26,732 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:39:26,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:26,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:39:26,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:39:26,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:26" (1/1) ... [2020-09-24 16:39:26,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67be94cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:26, skipping insertion in model container [2020-09-24 16:39:26,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:26" (1/1) ... [2020-09-24 16:39:26,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:39:26,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:39:28,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:28,728 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:39:29,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:29,124 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:39:29,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29 WrapperNode [2020-09-24 16:39:29,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:29,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:39:29,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:39:29,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:39:29,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:39:29,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:39:29,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:39:29,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:39:29,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (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 16:39:29,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:39:29,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:39:29,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 16:39:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-24 16:39:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-24 16:39:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 16:39:29,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 16:39:29,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 16:39:29,393 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:39:29,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 16:39:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 16:39:29,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 16:39:29,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 16:39:29,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 16:39:29,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 16:39:29,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 16:39:29,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 16:39:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-24 16:39:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-24 16:39:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-24 16:39:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-24 16:39:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-24 16:39:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-24 16:39:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-24 16:39:29,403 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-24 16:39:29,404 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-24 16:39:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-24 16:39:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-24 16:39:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-24 16:39:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-24 16:39:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-24 16:39:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-24 16:39:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 16:39:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-24 16:39:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:39:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-24 16:39:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-24 16:39:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-24 16:39:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-24 16:39:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-24 16:39:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-24 16:39:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-24 16:39:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-24 16:39:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-24 16:39:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-24 16:39:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-24 16:39:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-24 16:39:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-24 16:39:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-24 16:39:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 16:39:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-24 16:39:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-24 16:39:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 16:39:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 16:39:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 16:39:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-24 16:39:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 16:39:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 16:39:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-24 16:39:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-24 16:39:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-24 16:39:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-24 16:39:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-24 16:39:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-24 16:39:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-24 16:39:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-24 16:39:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-24 16:39:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-24 16:39:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 16:39:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 16:39:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 16:39:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 16:39:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:39:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 16:39:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 16:39:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 16:39:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-24 16:39:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:39:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-24 16:39:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-24 16:39:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:39:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-24 16:39:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 16:39:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 16:39:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 16:39:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 16:39:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 16:39:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 16:39:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 16:39:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 16:39:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 16:39:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:39:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 16:39:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:39:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-24 16:39:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 16:39:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:39:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:39:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:39:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 16:39:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 16:39:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 16:39:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 16:39:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 16:39:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 16:39:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 16:39:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-24 16:39:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-24 16:39:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-24 16:39:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-24 16:39:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-24 16:39:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-24 16:39:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-24 16:39:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-24 16:39:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 16:39:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-24 16:39:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-24 16:39:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-24 16:39:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-24 16:39:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-24 16:39:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-24 16:39:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-24 16:39:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-24 16:39:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-24 16:39:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-24 16:39:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:39:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:39:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:39:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-24 16:39:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:39:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-24 16:39:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-24 16:39:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-24 16:39:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-24 16:39:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-24 16:39:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-24 16:39:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-24 16:39:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 16:39:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 16:39:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 16:39:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-24 16:39:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:39:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-24 16:39:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-24 16:39:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-24 16:39:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-24 16:39:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-24 16:39:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-24 16:39:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-24 16:39:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-24 16:39:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 16:39:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-24 16:39:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-24 16:39:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-24 16:39:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-24 16:39:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-24 16:39:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-24 16:39:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-24 16:39:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:39:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:39:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:39:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 16:39:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:39:30,482 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 16:39:31,365 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-24 16:39:31,726 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:39:31,727 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 16:39:31,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:31 BoogieIcfgContainer [2020-09-24 16:39:31,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:39:31,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:39:31,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:39:31,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:39:31,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:39:26" (1/3) ... [2020-09-24 16:39:31,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c6687f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:31, skipping insertion in model container [2020-09-24 16:39:31,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (2/3) ... [2020-09-24 16:39:31,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c6687f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:31, skipping insertion in model container [2020-09-24 16:39:31,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:31" (3/3) ... [2020-09-24 16:39:31,754 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 16:39:31,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:39:31,785 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:39:31,807 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:39:31,847 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:39:31,847 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:39:31,847 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:39:31,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:39:31,848 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:39:31,848 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:39:31,848 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:39:31,848 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:39:31,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-24 16:39:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 16:39:31,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:31,914 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 16:39:31,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:31,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:31,924 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-24 16:39:31,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:31,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982216465] [2020-09-24 16:39:31,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:32,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:32,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:32,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:32,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:32,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 16:39:32,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:32,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 16:39:32,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:39:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 16:39:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:39:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:33,132 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:39:33,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 16:39:33,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:39:33,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:33,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 16:39:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:33,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:33,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:33,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:39:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:33,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:33,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:33,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:39:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,423 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:39:33,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:39:33,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:33,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:39:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,478 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,478 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:33,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:39:33,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:39:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 16:39:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:39:33,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:33,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 16:39:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:33,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:33,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:39:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:33,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 16:39:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:39:33,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:33,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 16:39:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:33,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:33,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 16:39:33,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982216465] [2020-09-24 16:39:33,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:39:33,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 16:39:33,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060601847] [2020-09-24 16:39:33,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:39:33,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:33,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:39:33,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:39:33,752 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 7 states. [2020-09-24 16:39:34,205 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:39:35,563 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 16:39:35,925 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-24 16:39:36,259 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:39:36,570 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:39:42,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:42,491 INFO L93 Difference]: Finished difference Result 2166 states and 2514 transitions. [2020-09-24 16:39:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:39:42,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-24 16:39:42,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:42,526 INFO L225 Difference]: With dead ends: 2166 [2020-09-24 16:39:42,527 INFO L226 Difference]: Without dead ends: 1174 [2020-09-24 16:39:42,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:39:42,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2020-09-24 16:39:42,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1062. [2020-09-24 16:39:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-09-24 16:39:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1184 transitions. [2020-09-24 16:39:42,721 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1184 transitions. Word has length 190 [2020-09-24 16:39:42,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:42,722 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1184 transitions. [2020-09-24 16:39:42,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:39:42,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1184 transitions. [2020-09-24 16:39:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 16:39:42,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:42,730 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 16:39:42,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:39:42,730 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:42,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:42,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1971199252, now seen corresponding path program 1 times [2020-09-24 16:39:42,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:42,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950875190] [2020-09-24 16:39:42,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:42,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:42,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:42,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:42,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:42,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 16:39:42,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:42,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:39:42,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:42,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:42,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-24 16:39:42,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:39:42,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,494 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:39:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,509 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 16:39:43,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 16:39:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:43,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:39:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:43,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:39:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:39:43,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:39:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,697 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:43,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 16:39:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:43,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 16:39:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:39:43,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 16:39:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:43,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:43,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:43,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:43,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:43,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:43,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:43,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:43,852 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 16:39:43,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950875190] [2020-09-24 16:39:43,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:43,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:39:43,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930101567] [2020-09-24 16:39:43,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:39:43,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:43,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:39:43,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:39:43,858 INFO L87 Difference]: Start difference. First operand 1062 states and 1184 transitions. Second operand 6 states. [2020-09-24 16:39:44,163 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:39:44,868 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 16:39:45,300 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:39:45,901 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:39:50,020 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:39:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:54,184 INFO L93 Difference]: Finished difference Result 2144 states and 2427 transitions. [2020-09-24 16:39:54,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:39:54,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2020-09-24 16:39:54,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:54,207 INFO L225 Difference]: With dead ends: 2144 [2020-09-24 16:39:54,207 INFO L226 Difference]: Without dead ends: 2118 [2020-09-24 16:39:54,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:39:54,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-09-24 16:39:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1926. [2020-09-24 16:39:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2020-09-24 16:39:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2158 transitions. [2020-09-24 16:39:54,381 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2158 transitions. Word has length 198 [2020-09-24 16:39:54,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:54,384 INFO L479 AbstractCegarLoop]: Abstraction has 1926 states and 2158 transitions. [2020-09-24 16:39:54,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:39:54,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2158 transitions. [2020-09-24 16:39:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 16:39:54,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:54,391 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:39:54,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:39:54,394 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:54,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:54,395 INFO L82 PathProgramCache]: Analyzing trace with hash 216367441, now seen corresponding path program 1 times [2020-09-24 16:39:54,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:54,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696873821] [2020-09-24 16:39:54,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:54,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:54,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:54,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:54,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:54,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 16:39:54,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:54,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:39:54,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:54,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:54,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 16:39:54,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 16:39:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:55,563 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:39:55,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:55,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:55,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:55,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:55,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:55,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 16:39:55,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:39:55,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 16:39:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:55,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 16:39:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:55,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:55,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:55,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:55,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:55,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:55,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:55,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:39:55,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:55,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:39:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:55,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:55,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:55,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:55,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:55,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:55,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:55,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:55,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:39:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:39:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:55,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:55,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:55,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:55,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:55,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:39:55,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:55,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:55,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:39:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:55,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:39:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:55,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:55,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:55,970 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:55,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:55,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:55,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:55,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:55,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:55,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:55,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:55,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:39:55,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:56,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 16:39:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,018 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,018 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,018 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:56,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:56,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:39:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 16:39:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 16:39:56,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:56,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:39:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:56,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:56,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:56,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:56,255 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 16:39:56,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696873821] [2020-09-24 16:39:56,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:56,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:39:56,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676519390] [2020-09-24 16:39:56,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:39:56,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:56,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:39:56,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:39:56,258 INFO L87 Difference]: Start difference. First operand 1926 states and 2158 transitions. Second operand 7 states. [2020-09-24 16:39:56,543 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:39:57,330 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 16:39:57,707 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:39:58,243 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:40:03,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:40:03,011 INFO L93 Difference]: Finished difference Result 2119 states and 2396 transitions. [2020-09-24 16:40:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:40:03,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-24 16:40:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:40:03,036 INFO L225 Difference]: With dead ends: 2119 [2020-09-24 16:40:03,036 INFO L226 Difference]: Without dead ends: 2116 [2020-09-24 16:40:03,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:40:03,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2020-09-24 16:40:03,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1925. [2020-09-24 16:40:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1925 states. [2020-09-24 16:40:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2156 transitions. [2020-09-24 16:40:03,181 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2156 transitions. Word has length 212 [2020-09-24 16:40:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:40:03,183 INFO L479 AbstractCegarLoop]: Abstraction has 1925 states and 2156 transitions. [2020-09-24 16:40:03,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:40:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2156 transitions. [2020-09-24 16:40:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 16:40:03,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:03,188 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:40:03,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:40:03,188 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:03,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:03,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1883054238, now seen corresponding path program 1 times [2020-09-24 16:40:03,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:03,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235298197] [2020-09-24 16:40:03,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:40:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,300 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,301 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 16:40:03,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:40:03,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:03,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 16:40:03,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 16:40:03,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,109 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:40:04,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 16:40:04,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:40:04,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 16:40:04,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 16:40:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,301 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,301 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:04,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:04,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:40:04,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:40:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,335 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:04,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:40:04,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:40:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:40:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:40:04,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:04,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:40:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:40:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:40:04,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:04,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:40:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 16:40:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:40:04,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:04,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:40:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 16:40:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 16:40:04,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:04,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:40:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:40:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:04,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:04,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:04,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:04,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:04,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:40:04,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:04,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:04,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:04,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:04,689 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 16:40:04,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235298197] [2020-09-24 16:40:04,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:40:04,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:40:04,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605684894] [2020-09-24 16:40:04,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:40:04,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:40:04,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:40:04,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:40:04,695 INFO L87 Difference]: Start difference. First operand 1925 states and 2156 transitions. Second operand 7 states. [2020-09-24 16:40:04,991 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:40:05,754 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 16:40:06,100 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:40:06,672 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:40:11,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:40:11,655 INFO L93 Difference]: Finished difference Result 2118 states and 2394 transitions. [2020-09-24 16:40:11,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:40:11,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-09-24 16:40:11,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:40:11,666 INFO L225 Difference]: With dead ends: 2118 [2020-09-24 16:40:11,667 INFO L226 Difference]: Without dead ends: 2115 [2020-09-24 16:40:11,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:40:11,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2020-09-24 16:40:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1924. [2020-09-24 16:40:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2020-09-24 16:40:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2154 transitions. [2020-09-24 16:40:11,791 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2154 transitions. Word has length 213 [2020-09-24 16:40:11,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:40:11,792 INFO L479 AbstractCegarLoop]: Abstraction has 1924 states and 2154 transitions. [2020-09-24 16:40:11,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:40:11,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2154 transitions. [2020-09-24 16:40:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-24 16:40:11,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:11,796 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:40:11,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:40:11,797 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:11,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:11,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1754355316, now seen corresponding path program 1 times [2020-09-24 16:40:11,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:11,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193310124] [2020-09-24 16:40:11,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:40:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:11,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:11,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:11,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:11,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:11,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:40:11,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:11,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:40:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 16:40:11,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,473 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:40:12,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 16:40:12,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:12,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:40:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 16:40:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:12,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:12,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:40:12,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:40:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:12,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:12,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:40:12,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:40:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:40:12,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:12,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:40:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:40:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:40:12,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:12,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:40:12,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 16:40:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:40:12,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:12,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:40:12,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 16:40:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 16:40:12,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:12,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:40:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:40:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:12,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:12,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:12,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:12,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:12,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:40:12,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:12,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:12,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:12,909 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 16:40:12,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193310124] [2020-09-24 16:40:12,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:40:12,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:40:12,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429953360] [2020-09-24 16:40:12,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:40:12,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:40:12,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:40:12,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:40:12,911 INFO L87 Difference]: Start difference. First operand 1924 states and 2154 transitions. Second operand 6 states. [2020-09-24 16:40:13,178 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:40:13,943 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 16:40:14,340 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:40:14,927 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 192