/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --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 23:25:35,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:25:35,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:25:35,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:25:35,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:25:35,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:25:35,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:25:35,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:25:35,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:25:35,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:25:35,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:25:35,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:25:35,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:25:35,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:25:35,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:25:35,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:25:35,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:25:35,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:25:35,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:25:35,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:25:35,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:25:35,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:25:35,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:25:35,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:25:35,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:25:35,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:25:35,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:25:35,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:25:35,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:25:35,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:25:35,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:25:35,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:25:35,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:25:35,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:25:35,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:25:35,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:25:35,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:25:35,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:25:35,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:25:35,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:25:35,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:25:35,811 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 23:25:35,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:25:35,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:25:35,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:25:35,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:25:35,857 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:25:35,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:25:35,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:25:35,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:25:35,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:25:35,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:25:35,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:25:35,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:25:35,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:25:35,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:25:35,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:25:35,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:25:35,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:25:35,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:25:35,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:25:35,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:25:35,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:25:35,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:25:35,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:25:35,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:25:35,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:25:35,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:25:35,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 23:25:35,862 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 23:25:36,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:25:36,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:25:36,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:25:36,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:25:36,359 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:25:36,361 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 23:25:36,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/523e65c91/735ad29a2ba042c393c0bdbb1aefa4b7/FLAG11b218f08 [2020-09-24 23:25:37,411 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:25:37,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 23:25:37,468 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/523e65c91/735ad29a2ba042c393c0bdbb1aefa4b7/FLAG11b218f08 [2020-09-24 23:25:37,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/523e65c91/735ad29a2ba042c393c0bdbb1aefa4b7 [2020-09-24 23:25:37,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:25:37,826 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:25:37,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:25:37,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:25:37,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:25:37,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:25:37" (1/1) ... [2020-09-24 23:25:37,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35246ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:37, skipping insertion in model container [2020-09-24 23:25:37,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:25:37" (1/1) ... [2020-09-24 23:25:37,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:25:37,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:25:39,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:25:39,355 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:25:39,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:25:39,794 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:25:39,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39 WrapperNode [2020-09-24 23:25:39,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:25:39,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:25:39,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:25:39,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:25:39,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (1/1) ... [2020-09-24 23:25:39,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (1/1) ... [2020-09-24 23:25:39,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (1/1) ... [2020-09-24 23:25:39,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (1/1) ... [2020-09-24 23:25:39,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (1/1) ... [2020-09-24 23:25:40,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (1/1) ... [2020-09-24 23:25:40,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (1/1) ... [2020-09-24 23:25:40,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:25:40,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:25:40,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:25:40,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:25:40,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (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 23:25:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:25:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:25:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 23:25:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-24 23:25:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-24 23:25:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 23:25:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 23:25:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 23:25:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 23:25:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 23:25:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 23:25:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 23:25:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 23:25:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 23:25:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 23:25:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 23:25:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 23:25:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-24 23:25:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-24 23:25:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-24 23:25:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-24 23:25:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-24 23:25:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-24 23:25:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-24 23:25:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-24 23:25:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-24 23:25:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-24 23:25:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-24 23:25:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-24 23:25:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-24 23:25:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-24 23:25:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-24 23:25:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 23:25:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-24 23:25:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:25:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-24 23:25:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-24 23:25:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-24 23:25:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-24 23:25:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-24 23:25:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-24 23:25:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-24 23:25:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-24 23:25:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-24 23:25:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-24 23:25:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-24 23:25:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-24 23:25:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-24 23:25:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-24 23:25:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 23:25:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-24 23:25:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-24 23:25:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 23:25:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 23:25:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 23:25:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-24 23:25:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 23:25:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 23:25:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-24 23:25:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-24 23:25:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-24 23:25:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-24 23:25:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-24 23:25:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-24 23:25:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-24 23:25:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-24 23:25:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-24 23:25:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-24 23:25:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 23:25:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 23:25:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 23:25:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 23:25:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:25:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 23:25:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 23:25:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 23:25:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-24 23:25:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:25:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-24 23:25:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-24 23:25:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:25:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-24 23:25:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 23:25:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 23:25:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 23:25:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 23:25:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 23:25:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 23:25:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 23:25:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 23:25:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 23:25:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:25:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 23:25:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:25:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-24 23:25:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 23:25:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 23:25:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 23:25:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:25:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 23:25:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 23:25:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 23:25:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 23:25:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 23:25:40,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 23:25:40,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 23:25:40,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-24 23:25:40,277 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-24 23:25:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-24 23:25:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-24 23:25:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-24 23:25:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-24 23:25:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-24 23:25:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-24 23:25:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 23:25:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-24 23:25:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-24 23:25:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-24 23:25:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-24 23:25:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-24 23:25:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-24 23:25:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-24 23:25:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-24 23:25:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-24 23:25:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-24 23:25:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:25:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:25:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:25:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-24 23:25:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:25:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-24 23:25:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-24 23:25:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-24 23:25:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-24 23:25:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-24 23:25:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-24 23:25:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-24 23:25:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 23:25:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 23:25:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 23:25:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-24 23:25:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:25:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-24 23:25:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-24 23:25:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-24 23:25:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-24 23:25:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-24 23:25:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-24 23:25:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-24 23:25:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-24 23:25:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 23:25:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:25:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:25:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:25:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 23:25:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:25:41,251 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 23:25:41,954 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-24 23:25:42,279 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:25:42,280 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:25:42,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:25:42 BoogieIcfgContainer [2020-09-24 23:25:42,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:25:42,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:25:42,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:25:42,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:25:42,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:25:37" (1/3) ... [2020-09-24 23:25:42,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2413b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:25:42, skipping insertion in model container [2020-09-24 23:25:42,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:39" (2/3) ... [2020-09-24 23:25:42,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2413b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:25:42, skipping insertion in model container [2020-09-24 23:25:42,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:25:42" (3/3) ... [2020-09-24 23:25:42,306 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 23:25:42,318 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:25:42,332 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:25:42,354 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:25:42,389 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:25:42,390 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:25:42,390 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:25:42,390 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:25:42,390 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:25:42,390 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:25:42,390 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:25:42,390 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:25:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-24 23:25:42,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 23:25:42,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:25:42,450 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 23:25:42,450 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:25:42,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:25:42,458 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-24 23:25:42,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:25:42,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757399254] [2020-09-24 23:25:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:25:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:43,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:43,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:43,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:46,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:48,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:48,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 23:25:48,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:25:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-09-24 23:25:48,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 23:25:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 23:25:48,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:25:48,701 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:25:48,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:48,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:48,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:48,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 23:25:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-24 23:25:48,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:48,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:49,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 23:25:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:25:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 23:25:49,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:49,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:49,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:25:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:25:49,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:49,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 23:25:49,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:49,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:49,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:25:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:25:49,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:49,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 23:25:49,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:49,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:49,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:49,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:49,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:25:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:25:49,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:25:49,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 23:25:49,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:25:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:25:49,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:25:49,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:25:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 23:25:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:25:49,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:25:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 23:25:49,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:25:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:25:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:25:49,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:49,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:25:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:25:49,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:49,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 23:25:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 23:25:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:49,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:25:49,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:49,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 23:25:49,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 23:25:49,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757399254] [2020-09-24 23:25:49,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:25:49,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:25:49,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555571858] [2020-09-24 23:25:49,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:25:49,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:25:49,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:25:49,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:25:49,900 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 8 states. [2020-09-24 23:25:50,172 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:25:50,993 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 23:25:51,466 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:25:52,053 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-24 23:25:52,381 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-09-24 23:25:52,709 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 23:25:53,038 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:25:58,154 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 23:25:58,479 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-24 23:25:58,781 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:25:59,088 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:26:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:26:03,538 INFO L93 Difference]: Finished difference Result 3118 states and 3648 transitions. [2020-09-24 23:26:03,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:26:03,541 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-24 23:26:03,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:26:03,578 INFO L225 Difference]: With dead ends: 3118 [2020-09-24 23:26:03,579 INFO L226 Difference]: Without dead ends: 2120 [2020-09-24 23:26:03,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:26:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-09-24 23:26:03,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1926. [2020-09-24 23:26:03,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2020-09-24 23:26:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2158 transitions. [2020-09-24 23:26:03,843 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2158 transitions. Word has length 190 [2020-09-24 23:26:03,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:26:03,844 INFO L479 AbstractCegarLoop]: Abstraction has 1926 states and 2158 transitions. [2020-09-24 23:26:03,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:26:03,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2158 transitions. [2020-09-24 23:26:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 23:26:03,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:26:03,851 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 23:26:03,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:26:03,852 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:26:03,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:26:03,852 INFO L82 PathProgramCache]: Analyzing trace with hash 216367441, now seen corresponding path program 1 times [2020-09-24 23:26:03,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:26:03,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807213715] [2020-09-24 23:26:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:26:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:04,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:04,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:04,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 23:26:04,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-24 23:26:04,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 23:26:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 23:26:04,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:05,461 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:26:05,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:26:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:05,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:05,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 23:26:05,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:05,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-24 23:26:05,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 23:26:05,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:05,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 23:26:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:06,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:06,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:06,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:06,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 23:26:06,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:06,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:26:06,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:06,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:26:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:06,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:06,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:06,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:06,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 23:26:06,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:26:06,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:06,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:26:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:06,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:06,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:06,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:26:06,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:06,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 23:26:06,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:26:06,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:06,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:26:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:06,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:06,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:06,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:06,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 23:26:06,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:06,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:06,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:06,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 23:26:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:06,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:06,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:06,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:06,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:06,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 23:26:06,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:06,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:26:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:06,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:06,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:26:06,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:06,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 23:26:06,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:26:06,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:06,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:26:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:06,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:06,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:06,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:26:06,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:06,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 23:26:06,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:06,851 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 23:26:06,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807213715] [2020-09-24 23:26:06,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:26:06,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:26:06,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631994196] [2020-09-24 23:26:06,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:26:06,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:26:06,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:26:06,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:26:06,860 INFO L87 Difference]: Start difference. First operand 1926 states and 2158 transitions. Second operand 7 states. [2020-09-24 23:26:07,102 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:26:07,753 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 23:26:08,100 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:26:08,539 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:26:13,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:26:13,305 INFO L93 Difference]: Finished difference Result 2119 states and 2396 transitions. [2020-09-24 23:26:13,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:26:13,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-24 23:26:13,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:26:13,320 INFO L225 Difference]: With dead ends: 2119 [2020-09-24 23:26:13,320 INFO L226 Difference]: Without dead ends: 2116 [2020-09-24 23:26:13,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:26:13,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2020-09-24 23:26:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1925. [2020-09-24 23:26:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1925 states. [2020-09-24 23:26:13,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2156 transitions. [2020-09-24 23:26:13,458 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2156 transitions. Word has length 212 [2020-09-24 23:26:13,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:26:13,459 INFO L479 AbstractCegarLoop]: Abstraction has 1925 states and 2156 transitions. [2020-09-24 23:26:13,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:26:13,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2156 transitions. [2020-09-24 23:26:13,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 23:26:13,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:26:13,462 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 23:26:13,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:26:13,463 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:26:13,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:26:13,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1883054238, now seen corresponding path program 1 times [2020-09-24 23:26:13,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:26:13,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769624304] [2020-09-24 23:26:13,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:26:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:13,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:14,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 23:26:14,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-09-24 23:26:14,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 23:26:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 23:26:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:14,919 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:26:14,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:26:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:15,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:15,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:15,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 23:26:15,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-24 23:26:15,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:26:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:15,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 23:26:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:15,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:15,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:15,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:15,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:26:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:26:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:15,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:26:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:15,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:15,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:15,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:15,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:15,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:26:15,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:15,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:26:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:15,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:26:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:15,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:15,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:15,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:26:15,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:15,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 23:26:15,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:26:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:15,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:26:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:15,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:15,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:15,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:15,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 23:26:15,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:15,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:15,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 23:26:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:15,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:15,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:15,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:15,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 23:26:15,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:15,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:26:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:15,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:26:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 23:26:15,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:26:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:15,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:26:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:16,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:16,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:26:16,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 23:26:16,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:16,191 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 23:26:16,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769624304] [2020-09-24 23:26:16,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:26:16,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:26:16,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593453429] [2020-09-24 23:26:16,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:26:16,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:26:16,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:26:16,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:26:16,195 INFO L87 Difference]: Start difference. First operand 1925 states and 2156 transitions. Second operand 7 states. [2020-09-24 23:26:16,514 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:26:17,356 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 23:26:17,786 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:26:18,279 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:26:23,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:26:23,236 INFO L93 Difference]: Finished difference Result 2118 states and 2394 transitions. [2020-09-24 23:26:23,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:26:23,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-09-24 23:26:23,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:26:23,248 INFO L225 Difference]: With dead ends: 2118 [2020-09-24 23:26:23,248 INFO L226 Difference]: Without dead ends: 2115 [2020-09-24 23:26:23,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:26:23,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2020-09-24 23:26:23,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1924. [2020-09-24 23:26:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2020-09-24 23:26:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2154 transitions. [2020-09-24 23:26:23,369 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2154 transitions. Word has length 213 [2020-09-24 23:26:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:26:23,370 INFO L479 AbstractCegarLoop]: Abstraction has 1924 states and 2154 transitions. [2020-09-24 23:26:23,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:26:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2154 transitions. [2020-09-24 23:26:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-24 23:26:23,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:26:23,374 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:26:23,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:26:23,375 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:26:23,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:26:23,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1754355316, now seen corresponding path program 1 times [2020-09-24 23:26:23,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:26:23,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27177642] [2020-09-24 23:26:23,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:26:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:23,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:23,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 23:26:23,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-09-24 23:26:23,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:26:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 23:26:23,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:24,548 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:26:24,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:26:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:24,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:24,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 23:26:24,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:24,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-24 23:26:24,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:26:24,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:24,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 23:26:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:24,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:25,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 23:26:25,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:26:25,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:26:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:26:25,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 23:26:25,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:26:25,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:26:25,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:26:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:26:25,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 23:26:25,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:25,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:26:25,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:26:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:25,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 23:26:25,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 23:26:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:26:25,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 23:26:25,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:26:25,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:26:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:26:25,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:26:25,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:26:25,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:26:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:25,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:25,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:25,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:26:25,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 23:26:25,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:25,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:25,738 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 23:26:25,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27177642] [2020-09-24 23:26:25,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:26:25,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:26:25,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342831366] [2020-09-24 23:26:25,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:26:25,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:26:25,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:26:25,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:26:25,748 INFO L87 Difference]: Start difference. First operand 1924 states and 2154 transitions. Second operand 6 states. [2020-09-24 23:26:26,050 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:26:26,680 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 198