/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:10:35,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:10:35,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:10:35,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:10:35,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:10:35,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:10:35,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:10:35,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:10:35,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:10:35,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:10:35,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:10:35,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:10:35,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:10:35,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:10:35,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:10:35,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:10:35,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:10:35,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:10:35,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:10:35,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:10:35,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:10:35,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:10:35,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:10:35,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:10:35,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:10:35,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:10:35,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:10:35,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:10:35,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:10:35,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:10:35,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:10:35,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:10:35,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:10:35,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:10:35,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:10:35,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:10:35,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:10:35,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:10:35,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:10:35,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:10:35,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:10:35,200 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 [2020-10-29 03:10:35,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:10:35,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:10:35,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:10:35,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:10:35,229 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:10:35,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:10:35,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:10:35,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:10:35,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:10:35,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:10:35,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:10:35,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:10:35,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:10:35,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:10:35,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:10:35,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:10:35,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:10:35,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:10:35,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:10:35,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:10:35,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:10:35,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:10:35,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:10:35,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:10:35,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:10:35,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:10:35,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-29 03:10:35,235 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:10:35,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:10:35,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:10:35,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:10:35,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:10:35,717 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:10:35,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-29 03:10:35,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96e7e0ac0/f3b6bf2256c14f3f8f70f5a9e56f1096/FLAGe1c2aa173 [2020-10-29 03:10:36,714 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:10:36,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-29 03:10:36,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96e7e0ac0/f3b6bf2256c14f3f8f70f5a9e56f1096/FLAGe1c2aa173 [2020-10-29 03:10:37,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96e7e0ac0/f3b6bf2256c14f3f8f70f5a9e56f1096 [2020-10-29 03:10:37,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:10:37,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:10:37,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:10:37,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:10:37,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:10:37,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:10:37" (1/1) ... [2020-10-29 03:10:37,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d20be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:37, skipping insertion in model container [2020-10-29 03:10:37,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:10:37" (1/1) ... [2020-10-29 03:10:37,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:10:37,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:10:38,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:10:38,571 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:10:38,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:10:38,846 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:10:38,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38 WrapperNode [2020-10-29 03:10:38,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:10:38,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:10:38,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:10:38,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:10:38,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (1/1) ... [2020-10-29 03:10:38,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (1/1) ... [2020-10-29 03:10:38,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (1/1) ... [2020-10-29 03:10:38,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (1/1) ... [2020-10-29 03:10:39,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (1/1) ... [2020-10-29 03:10:39,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (1/1) ... [2020-10-29 03:10:39,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (1/1) ... [2020-10-29 03:10:39,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:10:39,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:10:39,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:10:39,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:10:39,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (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 [2020-10-29 03:10:39,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:10:39,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:10:39,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 03:10:39,149 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:10:39,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-29 03:10:39,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-29 03:10:39,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2020-10-29 03:10:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2020-10-29 03:10:39,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-29 03:10:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-29 03:10:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-29 03:10:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-29 03:10:39,154 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-29 03:10:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-29 03:10:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 03:10:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-29 03:10:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-29 03:10:39,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-29 03:10:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-29 03:10:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-29 03:10:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-29 03:10:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-29 03:10:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-29 03:10:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-29 03:10:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-29 03:10:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-29 03:10:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-10-29 03:10:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-29 03:10:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-29 03:10:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2020-10-29 03:10:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2020-10-29 03:10:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2020-10-29 03:10:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2020-10-29 03:10:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2020-10-29 03:10:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2020-10-29 03:10:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2020-10-29 03:10:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2020-10-29 03:10:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-29 03:10:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:10:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-29 03:10:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2020-10-29 03:10:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-29 03:10:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-29 03:10:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-29 03:10:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2020-10-29 03:10:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2020-10-29 03:10:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2020-10-29 03:10:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-29 03:10:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2020-10-29 03:10:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-29 03:10:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-29 03:10:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-29 03:10:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-29 03:10:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-29 03:10:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-29 03:10:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-29 03:10:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-29 03:10:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-29 03:10:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-29 03:10:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-29 03:10:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-29 03:10:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-29 03:10:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-29 03:10:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-29 03:10:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-29 03:10:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-29 03:10:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-29 03:10:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-29 03:10:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-29 03:10:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-29 03:10:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-29 03:10:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-29 03:10:39,169 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-29 03:10:39,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-29 03:10:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-29 03:10:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-29 03:10:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-29 03:10:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-29 03:10:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-29 03:10:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-29 03:10:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-29 03:10:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-29 03:10:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-29 03:10:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-29 03:10:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-29 03:10:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-29 03:10:39,174 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:10:39,174 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:10:39,174 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 03:10:39,174 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 03:10:39,174 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:10:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:10:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-29 03:10:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-29 03:10:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:10:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-29 03:10:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2020-10-29 03:10:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-29 03:10:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-29 03:10:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-29 03:10:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-29 03:10:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-29 03:10:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-29 03:10:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-29 03:10:39,177 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-29 03:10:39,177 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-29 03:10:39,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2020-10-29 03:10:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2020-10-29 03:10:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-29 03:10:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2020-10-29 03:10:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 03:10:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-29 03:10:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2020-10-29 03:10:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-29 03:10:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-29 03:10:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2020-10-29 03:10:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2020-10-29 03:10:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-29 03:10:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-29 03:10:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-29 03:10:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-29 03:10:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-29 03:10:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-29 03:10:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-29 03:10:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-29 03:10:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-29 03:10:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-29 03:10:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-29 03:10:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-29 03:10:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-29 03:10:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-29 03:10:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-29 03:10:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-29 03:10:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-29 03:10:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-29 03:10:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-29 03:10:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-29 03:10:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-29 03:10:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-29 03:10:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 03:10:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 03:10:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:10:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-29 03:10:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 03:10:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 03:10:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-29 03:10:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-29 03:10:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-29 03:10:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-29 03:10:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-29 03:10:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-29 03:10:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-29 03:10:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-29 03:10:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-29 03:10:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-29 03:10:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-29 03:10:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-29 03:10:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-29 03:10:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:10:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2020-10-29 03:10:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-29 03:10:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-29 03:10:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-29 03:10:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-29 03:10:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-29 03:10:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-29 03:10:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 03:10:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:10:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:10:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:10:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 03:10:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:10:39,814 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-29 03:10:40,770 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:10:40,771 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 03:10:40,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:10:40 BoogieIcfgContainer [2020-10-29 03:10:40,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:10:40,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:10:40,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:10:40,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:10:40,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:10:37" (1/3) ... [2020-10-29 03:10:40,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0954e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:10:40, skipping insertion in model container [2020-10-29 03:10:40,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:10:38" (2/3) ... [2020-10-29 03:10:40,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0954e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:10:40, skipping insertion in model container [2020-10-29 03:10:40,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:10:40" (3/3) ... [2020-10-29 03:10:40,788 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-29 03:10:40,801 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:10:40,807 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:10:40,820 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:10:40,852 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:10:40,853 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:10:40,853 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:10:40,853 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:10:40,853 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:10:40,853 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:10:40,853 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:10:40,854 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:10:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states. [2020-10-29 03:10:40,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 03:10:40,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:10:40,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:10:40,902 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:10:40,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:10:40,908 INFO L82 PathProgramCache]: Analyzing trace with hash 913335000, now seen corresponding path program 1 times [2020-10-29 03:10:40,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:10:40,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863050238] [2020-10-29 03:10:40,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:10:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:41,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:41,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:42,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:42,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 03:10:42,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:10:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1664 [2020-10-29 03:10:42,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:42,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:42,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:42,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 03:10:42,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:42,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 03:10:43,392 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:10:43,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:10:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:10:43,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 03:10:43,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:10:43,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:10:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:10:43,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 03:10:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 03:10:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:10:43,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:10:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:10:43,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 03:10:43,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:43,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:10:43,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:10:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:10:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:10:43,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 03:10:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:43,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:10:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:10:43,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:10:43,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 03:10:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:43,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:10:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 03:10:43,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 03:10:43,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 03:10:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:43,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:10:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 03:10:43,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 03:10:43,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:43,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:10:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:43,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:43,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:43,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:10:43,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:43,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:10:43,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:43,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:43,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:43,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:10:43,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:10:43,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863050238] [2020-10-29 03:10:43,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:10:43,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 03:10:43,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360353726] [2020-10-29 03:10:43,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 03:10:43,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:10:43,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 03:10:43,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:10:43,797 INFO L87 Difference]: Start difference. First operand 512 states. Second operand 6 states. [2020-10-29 03:10:44,191 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:10:48,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:10:48,837 INFO L93 Difference]: Finished difference Result 881 states and 1120 transitions. [2020-10-29 03:10:48,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:10:48,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-10-29 03:10:48,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:10:48,860 INFO L225 Difference]: With dead ends: 881 [2020-10-29 03:10:48,860 INFO L226 Difference]: Without dead ends: 492 [2020-10-29 03:10:48,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:10:48,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-10-29 03:10:49,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 367. [2020-10-29 03:10:49,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-10-29 03:10:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 432 transitions. [2020-10-29 03:10:49,047 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 432 transitions. Word has length 51 [2020-10-29 03:10:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:10:49,048 INFO L481 AbstractCegarLoop]: Abstraction has 367 states and 432 transitions. [2020-10-29 03:10:49,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 03:10:49,048 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 432 transitions. [2020-10-29 03:10:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 03:10:49,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:10:49,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:10:49,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:10:49,052 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:10:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:10:49,052 INFO L82 PathProgramCache]: Analyzing trace with hash 518968214, now seen corresponding path program 1 times [2020-10-29 03:10:49,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:10:49,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411655064] [2020-10-29 03:10:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:10:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:49,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:49,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:50,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:50,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 03:10:50,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:10:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-10-29 03:10:50,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:50,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:10:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 03:10:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 03:10:50,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:50,790 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:10:50,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:10:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:50,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:10:50,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 03:10:50,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:50,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:10:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:50,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:50,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:50,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:10:50,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 03:10:50,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:50,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:50,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:10:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:50,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:50,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:50,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:10:50,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:50,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 03:10:50,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:50,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:50,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:10:50,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:10:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:50,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:50,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:10:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:10:50,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:50,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:50,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:10:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:50,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:50,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:50,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:10:50,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:50,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:10:50,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:50,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:50,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:50,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:10:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:50,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:50,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:50,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 03:10:50,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:10:50,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:50,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 03:10:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:50,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:50,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:10:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:51,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:51,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:51,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 03:10:51,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:51,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 03:10:51,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:51,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:51,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:10:51,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:10:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:10:51,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:10:51,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:10:51,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:10:51,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:10:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:10:51,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:10:51,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:10:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:10:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:10:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:10:51,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:10:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:10:51,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411655064] [2020-10-29 03:10:51,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:10:51,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 03:10:51,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948999451] [2020-10-29 03:10:51,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 03:10:51,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:10:51,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 03:10:51,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:10:51,047 INFO L87 Difference]: Start difference. First operand 367 states and 432 transitions. Second operand 7 states. [2020-10-29 03:10:51,401 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:10:51,847 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-29 03:10:52,233 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 03:11:00,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:11:00,618 INFO L93 Difference]: Finished difference Result 932 states and 1172 transitions. [2020-10-29 03:11:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:11:00,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-29 03:11:00,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:11:00,631 INFO L225 Difference]: With dead ends: 932 [2020-10-29 03:11:00,632 INFO L226 Difference]: Without dead ends: 904 [2020-10-29 03:11:00,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:11:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-10-29 03:11:00,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 654. [2020-10-29 03:11:00,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-10-29 03:11:00,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 776 transitions. [2020-10-29 03:11:00,871 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 776 transitions. Word has length 51 [2020-10-29 03:11:00,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:11:00,872 INFO L481 AbstractCegarLoop]: Abstraction has 654 states and 776 transitions. [2020-10-29 03:11:00,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 03:11:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 776 transitions. [2020-10-29 03:11:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-29 03:11:00,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:11:00,877 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] [2020-10-29 03:11:00,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:11:00,877 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:11:00,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:11:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash 385643534, now seen corresponding path program 1 times [2020-10-29 03:11:00,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:11:00,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172278155] [2020-10-29 03:11:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:11:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:00,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:01,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:02,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:03,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:03,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 03:11:03,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:11:03,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3005 [2020-10-29 03:11:03,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:03,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:03,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:03,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-29 03:11:03,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:11:03,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:04,369 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:11:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:11:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:04,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 03:11:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:04,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:04,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 03:11:04,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:04,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:04,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:04,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:04,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:11:04,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 03:11:04,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:11:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:11:04,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:04,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:04,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:11:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:11:04,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 03:11:04,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:11:04,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 03:11:04,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:11:04,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 03:11:04,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:04,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 03:11:04,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 03:11:04,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:11:04,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 03:11:04,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:04,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 03:11:04,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:04,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 03:11:04,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:04,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:04,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:04,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:04,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:04,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:04,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:04,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:11:04,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172278155] [2020-10-29 03:11:04,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:11:04,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 03:11:04,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207652564] [2020-10-29 03:11:04,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:11:04,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:11:04,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:11:04,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:11:04,975 INFO L87 Difference]: Start difference. First operand 654 states and 776 transitions. Second operand 8 states. [2020-10-29 03:11:05,387 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:05,893 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-29 03:11:06,287 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 03:11:10,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:11:10,964 INFO L93 Difference]: Finished difference Result 934 states and 1176 transitions. [2020-10-29 03:11:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:11:10,964 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-29 03:11:10,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:11:10,972 INFO L225 Difference]: With dead ends: 934 [2020-10-29 03:11:10,973 INFO L226 Difference]: Without dead ends: 919 [2020-10-29 03:11:10,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:11:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-29 03:11:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 654. [2020-10-29 03:11:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-10-29 03:11:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 775 transitions. [2020-10-29 03:11:11,130 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 775 transitions. Word has length 84 [2020-10-29 03:11:11,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:11:11,131 INFO L481 AbstractCegarLoop]: Abstraction has 654 states and 775 transitions. [2020-10-29 03:11:11,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:11:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 775 transitions. [2020-10-29 03:11:11,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-29 03:11:11,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:11:11,134 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] [2020-10-29 03:11:11,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:11:11,135 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:11:11,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:11:11,135 INFO L82 PathProgramCache]: Analyzing trace with hash -423703092, now seen corresponding path program 1 times [2020-10-29 03:11:11,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:11:11,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194592064] [2020-10-29 03:11:11,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:11:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:11,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:11,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:11,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 03:11:11,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-10-29 03:11:11,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:11,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:11:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 03:11:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 03:11:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,257 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:11:12,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:11:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:12,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 03:11:12,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:12,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:11:12,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:12,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:12,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 03:11:12,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 03:11:12,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:12,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:12,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:12,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:12,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:12,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:11:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:11:12,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:12,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:11:12,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:12,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:11:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:11:12,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 03:11:12,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:11:12,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:11:12,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 03:11:12,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:11:12,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 03:11:12,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:12,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:12,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:12,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:11:12,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 03:11:12,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:12,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 03:11:12,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:12,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:12,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:12,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:12,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:12,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:12,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:12,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:12,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:12,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:12,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:12,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:12,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:12,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:11:12,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194592064] [2020-10-29 03:11:12,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:11:12,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 03:11:12,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575282080] [2020-10-29 03:11:12,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:11:12,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:11:12,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:11:12,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:11:12,878 INFO L87 Difference]: Start difference. First operand 654 states and 775 transitions. Second operand 8 states. [2020-10-29 03:11:13,233 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:13,750 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 03:11:14,202 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:23,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:11:23,355 INFO L93 Difference]: Finished difference Result 2417 states and 3026 transitions. [2020-10-29 03:11:23,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:11:23,356 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-29 03:11:23,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:11:23,367 INFO L225 Difference]: With dead ends: 2417 [2020-10-29 03:11:23,368 INFO L226 Difference]: Without dead ends: 1775 [2020-10-29 03:11:23,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:11:23,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-10-29 03:11:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1327. [2020-10-29 03:11:23,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1327 states. [2020-10-29 03:11:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1587 transitions. [2020-10-29 03:11:23,687 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1587 transitions. Word has length 84 [2020-10-29 03:11:23,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:11:23,687 INFO L481 AbstractCegarLoop]: Abstraction has 1327 states and 1587 transitions. [2020-10-29 03:11:23,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:11:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1587 transitions. [2020-10-29 03:11:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-29 03:11:23,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:11:23,690 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] [2020-10-29 03:11:23,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 03:11:23,691 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:11:23,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:11:23,692 INFO L82 PathProgramCache]: Analyzing trace with hash -413707972, now seen corresponding path program 1 times [2020-10-29 03:11:23,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:11:23,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380439267] [2020-10-29 03:11:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:11:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:23,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 03:11:23,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-29 03:11:23,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:23,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 03:11:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 03:11:23,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:24,472 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:11:24,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:11:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:24,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 03:11:24,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:11:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:24,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 03:11:24,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 03:11:24,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:24,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:24,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:24,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:24,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:24,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:24,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:24,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:11:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:11:24,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 03:11:24,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:11:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:24,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:11:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:11:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 03:11:24,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:11:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:11:24,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 03:11:24,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:24,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:11:24,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 03:11:24,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:24,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:24,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:24,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:24,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:24,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:24,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:24,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:24,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:24,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:24,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:24,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:24,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:25,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:25,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:25,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:11:25,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:25,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 03:11:25,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:25,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:25,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:25,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:25,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:25,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:25,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:25,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:25,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:25,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:25,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:25,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 03:11:25,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:25,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:25,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:25,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:25,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:25,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:25,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:25,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:25,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:25,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:25,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:25,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:25,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:25,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:25,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:25,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:25,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:25,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:25,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:25,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:25,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:25,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:11:25,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380439267] [2020-10-29 03:11:25,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:11:25,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 03:11:25,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11672909] [2020-10-29 03:11:25,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 03:11:25,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:11:25,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 03:11:25,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:11:25,116 INFO L87 Difference]: Start difference. First operand 1327 states and 1587 transitions. Second operand 9 states. [2020-10-29 03:11:25,479 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:25,994 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 03:11:26,473 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:31,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:11:31,100 INFO L93 Difference]: Finished difference Result 1767 states and 2244 transitions. [2020-10-29 03:11:31,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:11:31,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-10-29 03:11:31,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:11:31,111 INFO L225 Difference]: With dead ends: 1767 [2020-10-29 03:11:31,111 INFO L226 Difference]: Without dead ends: 1762 [2020-10-29 03:11:31,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:11:31,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2020-10-29 03:11:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1326. [2020-10-29 03:11:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-29 03:11:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1585 transitions. [2020-10-29 03:11:31,421 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1585 transitions. Word has length 85 [2020-10-29 03:11:31,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:11:31,421 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 1585 transitions. [2020-10-29 03:11:31,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 03:11:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1585 transitions. [2020-10-29 03:11:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-29 03:11:31,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:11:31,424 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] [2020-10-29 03:11:31,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 03:11:31,424 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:11:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:11:31,425 INFO L82 PathProgramCache]: Analyzing trace with hash -99182065, now seen corresponding path program 1 times [2020-10-29 03:11:31,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:11:31,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138816414] [2020-10-29 03:11:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:11:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:31,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:31,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 03:11:31,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-29 03:11:31,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:31,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 03:11:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 03:11:31,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:32,182 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:11:32,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:11:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:32,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 03:11:32,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:32,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:11:32,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:32,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:32,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 03:11:32,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:32,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 03:11:32,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:32,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:32,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:32,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:32,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:11:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:11:32,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:32,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:32,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:11:32,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:32,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:11:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:11:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-29 03:11:32,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:11:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:32,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:32,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:11:32,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 03:11:32,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:32,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:32,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:11:32,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 03:11:32,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:32,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 03:11:32,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:32,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:32,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 03:11:32,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:32,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:32,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:32,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:32,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:32,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:32,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:32,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:32,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:32,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:11:32,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138816414] [2020-10-29 03:11:32,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:11:32,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 03:11:32,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328352591] [2020-10-29 03:11:32,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:11:32,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:11:32,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:11:32,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:11:32,872 INFO L87 Difference]: Start difference. First operand 1326 states and 1585 transitions. Second operand 8 states. [2020-10-29 03:11:33,235 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:33,749 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-29 03:11:34,168 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 03:11:38,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:11:38,695 INFO L93 Difference]: Finished difference Result 1766 states and 2242 transitions. [2020-10-29 03:11:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:11:38,701 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-10-29 03:11:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:11:38,710 INFO L225 Difference]: With dead ends: 1766 [2020-10-29 03:11:38,710 INFO L226 Difference]: Without dead ends: 1761 [2020-10-29 03:11:38,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:11:38,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2020-10-29 03:11:39,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1325. [2020-10-29 03:11:39,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2020-10-29 03:11:39,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1583 transitions. [2020-10-29 03:11:39,096 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1583 transitions. Word has length 86 [2020-10-29 03:11:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:11:39,097 INFO L481 AbstractCegarLoop]: Abstraction has 1325 states and 1583 transitions. [2020-10-29 03:11:39,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:11:39,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1583 transitions. [2020-10-29 03:11:39,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-29 03:11:39,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:11:39,099 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] [2020-10-29 03:11:39,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 03:11:39,099 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:11:39,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:11:39,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1065863647, now seen corresponding path program 1 times [2020-10-29 03:11:39,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:11:39,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677021609] [2020-10-29 03:11:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:11:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:39,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:39,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:39,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 03:11:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-29 03:11:39,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:39,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 03:11:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 03:11:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:39,778 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:11:39,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:11:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:39,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:39,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:39,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:39,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:39,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 03:11:39,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:39,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:11:39,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:39,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:39,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:39,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:39,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 03:11:39,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:39,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 03:11:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:39,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:39,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:39,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:39,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:39,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:11:39,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:39,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:39,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:40,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:40,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:40,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:11:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:11:40,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:11:40,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:11:40,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:11:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:11:40,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 03:11:40,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:11:40,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:11:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 03:11:40,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:40,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:11:40,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 03:11:40,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:40,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:40,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:11:40,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 03:11:40,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:40,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 03:11:40,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:40,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:40,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:40,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:40,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:40,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:40,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:40,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:40,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:40,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:40,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:40,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:40,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:40,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:11:40,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677021609] [2020-10-29 03:11:40,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:11:40,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 03:11:40,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445746902] [2020-10-29 03:11:40,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:11:40,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:11:40,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:11:40,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:11:40,368 INFO L87 Difference]: Start difference. First operand 1325 states and 1583 transitions. Second operand 8 states. [2020-10-29 03:11:40,748 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:41,300 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-29 03:11:41,735 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 03:11:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:11:46,840 INFO L93 Difference]: Finished difference Result 1765 states and 2240 transitions. [2020-10-29 03:11:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:11:46,841 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-10-29 03:11:46,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:11:46,850 INFO L225 Difference]: With dead ends: 1765 [2020-10-29 03:11:46,850 INFO L226 Difference]: Without dead ends: 1760 [2020-10-29 03:11:46,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:11:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2020-10-29 03:11:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1324. [2020-10-29 03:11:47,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2020-10-29 03:11:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1581 transitions. [2020-10-29 03:11:47,171 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1581 transitions. Word has length 87 [2020-10-29 03:11:47,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:11:47,172 INFO L481 AbstractCegarLoop]: Abstraction has 1324 states and 1581 transitions. [2020-10-29 03:11:47,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:11:47,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1581 transitions. [2020-10-29 03:11:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-29 03:11:47,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:11:47,174 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] [2020-10-29 03:11:47,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 03:11:47,175 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:11:47,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:11:47,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1467747758, now seen corresponding path program 1 times [2020-10-29 03:11:47,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:11:47,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747172056] [2020-10-29 03:11:47,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:11:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:47,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:47,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:47,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 03:11:47,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 03:11:47,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:47,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 03:11:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 03:11:47,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:47,840 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:11:47,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:11:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:47,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:47,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:47,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:47,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 03:11:47,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:47,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:11:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:47,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:47,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:48,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 03:11:48,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 03:11:48,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:48,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:48,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:48,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:48,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:11:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:11:48,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:48,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:11:48,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:11:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:11:48,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 03:11:48,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:11:48,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:48,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:11:48,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 03:11:48,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:11:48,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 03:11:48,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:48,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:11:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 03:11:48,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:11:48,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 03:11:48,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:48,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:11:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:11:48,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:11:48,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:11:48,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:11:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:48,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:48,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:48,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:11:48,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:11:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:11:48,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:48,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:11:48,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:11:48,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:11:48,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:11:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:11:48,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747172056] [2020-10-29 03:11:48,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:11:48,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 03:11:48,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027213855] [2020-10-29 03:11:48,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:11:48,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:11:48,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:11:48,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:11:48,421 INFO L87 Difference]: Start difference. First operand 1324 states and 1581 transitions. Second operand 8 states. [2020-10-29 03:11:48,786 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-29 03:11:49,277 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-29 03:11:49,682 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 03:11:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:11:54,124 INFO L93 Difference]: Finished difference Result 1764 states and 2238 transitions. [2020-10-29 03:11:54,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:11:54,125 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-10-29 03:11:54,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:11:54,134 INFO L225 Difference]: With dead ends: 1764 [2020-10-29 03:11:54,135 INFO L226 Difference]: Without dead ends: 1740 [2020-10-29 03:11:54,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:11:54,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2020-10-29 03:11:54,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1304. [2020-10-29 03:11:54,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-10-29 03:11:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1558 transitions. [2020-10-29 03:11:54,441 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1558 transitions. Word has length 88 [2020-10-29 03:11:54,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:11:54,442 INFO L481 AbstractCegarLoop]: Abstraction has 1304 states and 1558 transitions. [2020-10-29 03:11:54,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:11:54,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1558 transitions. [2020-10-29 03:11:54,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-29 03:11:54,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:11:54,450 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 03:11:54,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 03:11:54,450 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:11:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:11:54,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1089001940, now seen corresponding path program 1 times [2020-10-29 03:11:54,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:11:54,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528355423] [2020-10-29 03:11:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:11:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:11:54,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:54,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:54,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:54,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:54,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:56,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:11:59,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:11:59,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-29 03:11:59,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 03:11:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-10-29 03:11:59,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:11:59,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:11:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:11:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 03:11:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:11:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 03:12:00,010 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 03:12:00,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:12:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:00,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:00,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:12:00,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:00,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 03:12:00,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:00,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:00,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:00,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:12:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:00,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 03:12:00,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 03:12:00,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:00,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:00,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:00,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:00,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:12:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:00,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:00,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:12:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:12:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:00,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:00,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:12:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:00,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:00,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:12:00,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:12:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:00,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:00,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:12:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:00,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:00,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 03:12:00,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:00,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:12:00,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:00,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:00,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:12:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:00,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:00,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:05,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 03:12:05,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 03:12:05,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 03:12:05,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:05,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 03:12:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-29 03:12:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 03:12:05,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:05,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:12:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:05,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:05,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 03:12:05,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:12:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 03:12:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:05,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:05,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:12:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:05,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:05,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 03:12:05,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:12:05,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 03:12:05,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:05,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:12:05,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:12:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:05,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:05,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:12:05,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:12:05,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:05,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:05,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:12:05,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 03:12:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:05,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 03:12:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:05,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:12:05,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:05,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:12:05,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 03:12:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:05,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:05,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:12:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:12:05,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:05,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:12:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:12:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:12:05,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:12:05,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:12:05,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:12:05,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:12:05,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:12:05,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-29 03:12:05,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-29 03:12:05,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:12:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:12:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:12:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:12:05,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:12:05,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 03:12:05,535 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 33 more [2020-10-29 03:12:05,543 INFO L168 Benchmark]: Toolchain (without parser) took 88256.94 ms. Allocated memory was 166.7 MB in the beginning and 1.1 GB in the end (delta: 896.5 MB). Free memory was 136.0 MB in the beginning and 600.6 MB in the end (delta: -464.7 MB). Peak memory consumption was 432.5 MB. Max. memory is 8.0 GB. [2020-10-29 03:12:05,543 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 166.7 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 03:12:05,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1555.43 ms. Allocated memory is still 166.7 MB. Free memory was 135.3 MB in the beginning and 93.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 8.0 GB. [2020-10-29 03:12:05,550 INFO L168 Benchmark]: Boogie Preprocessor took 213.72 ms. Allocated memory is still 166.7 MB. Free memory was 93.5 MB in the beginning and 85.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-29 03:12:05,555 INFO L168 Benchmark]: RCFGBuilder took 1711.02 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 85.1 MB in the beginning and 131.6 MB in the end (delta: -46.5 MB). Peak memory consumption was 58.9 MB. Max. memory is 8.0 GB. [2020-10-29 03:12:05,556 INFO L168 Benchmark]: TraceAbstraction took 84765.39 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 863.0 MB). Free memory was 131.1 MB in the beginning and 600.6 MB in the end (delta: -469.6 MB). Peak memory consumption was 393.9 MB. Max. memory is 8.0 GB. [2020-10-29 03:12:05,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 166.7 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1555.43 ms. Allocated memory is still 166.7 MB. Free memory was 135.3 MB in the beginning and 93.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 213.72 ms. Allocated memory is still 166.7 MB. Free memory was 93.5 MB in the beginning and 85.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1711.02 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 85.1 MB in the beginning and 131.6 MB in the end (delta: -46.5 MB). Peak memory consumption was 58.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 84765.39 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 863.0 MB). Free memory was 131.1 MB in the beginning and 600.6 MB in the end (delta: -469.6 MB). Peak memory consumption was 393.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...