/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=0.4 --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 -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 0.1.25-adbd35c [2020-10-14 17:26:42,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 17:26:42,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 17:26:42,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 17:26:42,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 17:26:42,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 17:26:42,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 17:26:42,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 17:26:42,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 17:26:42,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 17:26:42,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 17:26:42,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 17:26:42,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 17:26:42,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 17:26:42,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 17:26:42,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 17:26:42,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 17:26:42,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 17:26:42,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 17:26:42,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 17:26:42,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 17:26:42,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 17:26:42,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 17:26:42,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 17:26:42,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 17:26:42,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 17:26:42,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 17:26:42,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 17:26:42,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 17:26:42,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 17:26:42,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 17:26:42,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 17:26:42,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 17:26:42,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 17:26:42,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 17:26:42,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 17:26:42,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 17:26:42,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 17:26:42,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 17:26:42,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 17:26:42,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 17:26:42,957 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 [2020-10-14 17:26:42,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 17:26:42,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 17:26:42,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 17:26:42,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 17:26:42,993 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 17:26:42,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 17:26:42,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 17:26:42,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 17:26:42,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 17:26:42,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 17:26:42,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 17:26:42,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 17:26:42,994 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 17:26:42,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 17:26:42,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 17:26:42,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 17:26:42,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 17:26:42,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 17:26:42,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 17:26:42,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 17:26:42,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 17:26:42,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 17:26:42,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 17:26:42,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 17:26:42,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 17:26:42,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 17:26:42,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 17:26:42,997 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 17:26:43,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 17:26:43,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 17:26:43,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 17:26:43,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 17:26:43,294 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 17:26:43,295 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-14 17:26:43,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ff138711/f8ea7cc3ddce4d928c4d0eb1f2fde7d2/FLAG3b44e68b4 [2020-10-14 17:26:44,000 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 17:26:44,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-14 17:26:44,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ff138711/f8ea7cc3ddce4d928c4d0eb1f2fde7d2/FLAG3b44e68b4 [2020-10-14 17:26:44,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ff138711/f8ea7cc3ddce4d928c4d0eb1f2fde7d2 [2020-10-14 17:26:44,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 17:26:44,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 17:26:44,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 17:26:44,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 17:26:44,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 17:26:44,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:26:44" (1/1) ... [2020-10-14 17:26:44,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da7f647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:44, skipping insertion in model container [2020-10-14 17:26:44,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:26:44" (1/1) ... [2020-10-14 17:26:44,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 17:26:44,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 17:26:45,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:26:45,483 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 17:26:45,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:26:45,853 INFO L208 MainTranslator]: Completed translation [2020-10-14 17:26:45,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45 WrapperNode [2020-10-14 17:26:45,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 17:26:45,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 17:26:45,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 17:26:45,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 17:26:45,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (1/1) ... [2020-10-14 17:26:45,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (1/1) ... [2020-10-14 17:26:45,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (1/1) ... [2020-10-14 17:26:45,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (1/1) ... [2020-10-14 17:26:46,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (1/1) ... [2020-10-14 17:26:46,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (1/1) ... [2020-10-14 17:26:46,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (1/1) ... [2020-10-14 17:26:46,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 17:26:46,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 17:26:46,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 17:26:46,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 17:26:46,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (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 [2020-10-14 17:26:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 17:26:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 17:26:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 17:26:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-14 17:26:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-14 17:26:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2020-10-14 17:26:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2020-10-14 17:26:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-14 17:26:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-14 17:26:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-14 17:26:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 17:26:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 17:26:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 17:26:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 17:26:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 17:26:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 17:26:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-14 17:26:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-14 17:26:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 17:26:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 17:26:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 17:26:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 17:26:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-14 17:26:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-14 17:26:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-14 17:26:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-10-14 17:26:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-14 17:26:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-14 17:26:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2020-10-14 17:26:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2020-10-14 17:26:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2020-10-14 17:26:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2020-10-14 17:26:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2020-10-14 17:26:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2020-10-14 17:26:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2020-10-14 17:26:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2020-10-14 17:26:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-14 17:26:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 17:26:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-14 17:26:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2020-10-14 17:26:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-14 17:26:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-14 17:26:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-14 17:26:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2020-10-14 17:26:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2020-10-14 17:26:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2020-10-14 17:26:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-14 17:26:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2020-10-14 17:26:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 17:26:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-14 17:26:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-14 17:26:46,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-14 17:26:46,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-14 17:26:46,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-14 17:26:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-14 17:26:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-14 17:26:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-14 17:26:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-14 17:26:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-14 17:26:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-14 17:26:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-14 17:26:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-14 17:26:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-14 17:26:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-14 17:26:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 17:26:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-14 17:26:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-14 17:26:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-14 17:26:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-14 17:26:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-14 17:26:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-14 17:26:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-14 17:26:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 17:26:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 17:26:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-14 17:26:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-14 17:26:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-14 17:26:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-14 17:26:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-14 17:26:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-14 17:26:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-14 17:26:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-14 17:26:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 17:26:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 17:26:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 17:26:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 17:26:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 17:26:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-14 17:26:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 17:26:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-14 17:26:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2020-10-14 17:26:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-14 17:26:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 17:26:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 17:26:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 17:26:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-14 17:26:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-14 17:26:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-14 17:26:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-14 17:26:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-14 17:26:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2020-10-14 17:26:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2020-10-14 17:26:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-14 17:26:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2020-10-14 17:26:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 17:26:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 17:26:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-14 17:26:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2020-10-14 17:26:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-14 17:26:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-14 17:26:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2020-10-14 17:26:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2020-10-14 17:26:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-14 17:26:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-14 17:26:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-14 17:26:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-14 17:26:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-14 17:26:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-14 17:26:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-14 17:26:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-14 17:26:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-14 17:26:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-14 17:26:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-14 17:26:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-14 17:26:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-14 17:26:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-14 17:26:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-14 17:26:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-14 17:26:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 17:26:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 17:26:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 17:26:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 17:26:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 17:26:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 17:26:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 17:26:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 17:26:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 17:26:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 17:26:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 17:26:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 17:26:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 17:26:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 17:26:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-14 17:26:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-14 17:26:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 17:26:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 17:26:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 17:26:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 17:26:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-14 17:26:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-14 17:26:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-14 17:26:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-14 17:26:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-14 17:26:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-14 17:26:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-14 17:26:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-14 17:26:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-10-14 17:26:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-14 17:26:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-14 17:26:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-14 17:26:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2020-10-14 17:26:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 17:26:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2020-10-14 17:26:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2020-10-14 17:26:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 17:26:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2020-10-14 17:26:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2020-10-14 17:26:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2020-10-14 17:26:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2020-10-14 17:26:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2020-10-14 17:26:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 17:26:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 17:26:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 17:26:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 17:26:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-14 17:26:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-14 17:26:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 17:26:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-14 17:26:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-14 17:26:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-14 17:26:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-14 17:26:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-14 17:26:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-14 17:26:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 17:26:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 17:26:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 17:26:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 17:26:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 17:26:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 17:26:46,874 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 17:26:47,775 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 17:26:47,775 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 17:26:47,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:26:47 BoogieIcfgContainer [2020-10-14 17:26:47,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 17:26:47,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 17:26:47,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 17:26:47,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 17:26:47,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:26:44" (1/3) ... [2020-10-14 17:26:47,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f760d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:26:47, skipping insertion in model container [2020-10-14 17:26:47,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:45" (2/3) ... [2020-10-14 17:26:47,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f760d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:26:47, skipping insertion in model container [2020-10-14 17:26:47,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:26:47" (3/3) ... [2020-10-14 17:26:47,794 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-14 17:26:47,806 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 17:26:47,814 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 17:26:47,829 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 17:26:47,860 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 17:26:47,860 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 17:26:47,861 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 17:26:47,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 17:26:47,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 17:26:47,861 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 17:26:47,861 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 17:26:47,861 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 17:26:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states. [2020-10-14 17:26:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 17:26:47,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:26:47,902 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] [2020-10-14 17:26:47,903 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:26:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:26:47,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1353120335, now seen corresponding path program 1 times [2020-10-14 17:26:47,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:26:47,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977171390] [2020-10-14 17:26:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:26:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:48,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:48,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:48,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:49,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:49,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 17:26:49,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:26:49,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1213 [2020-10-14 17:26:49,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:49,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:49,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:49,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 17:26:49,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:49,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 17:26:49,907 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:26:49,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:49,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:49,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:49,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:49,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:49,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 17:26:49,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:49,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:49,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:49,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:49,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:49,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:50,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:50,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:50,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:50,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:50,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 17:26:50,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:50,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 17:26:50,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:50,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:50,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:50,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:50,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:50,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:26:50,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:50,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:50,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:50,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:50,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:50,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:26:50,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:50,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:50,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:50,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 17:26:50,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:50,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:26:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:50,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:50,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:50,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:26:50,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:26:50,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:50,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 17:26:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:50,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 17:26:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:50,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:50,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 17:26:50,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:50,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 17:26:50,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:50,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 17:26:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:50,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:50,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:50,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 17:26:50,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:50,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:26:50,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:50,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:50,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:50,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:50,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:50,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:50,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:50,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:50,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:50,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:50,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:26:50,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:50,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:26:50,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977171390] [2020-10-14 17:26:50,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:26:50,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 17:26:50,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828237844] [2020-10-14 17:26:50,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 17:26:50,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:26:50,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 17:26:50,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 17:26:50,231 INFO L87 Difference]: Start difference. First operand 508 states. Second operand 6 states. [2020-10-14 17:26:50,614 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:26:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:26:54,536 INFO L93 Difference]: Finished difference Result 875 states and 1111 transitions. [2020-10-14 17:26:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:26:54,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-14 17:26:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:26:54,561 INFO L225 Difference]: With dead ends: 875 [2020-10-14 17:26:54,561 INFO L226 Difference]: Without dead ends: 490 [2020-10-14 17:26:54,569 INFO L675 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 [2020-10-14 17:26:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-14 17:26:54,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 365. [2020-10-14 17:26:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-10-14 17:26:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 430 transitions. [2020-10-14 17:26:54,703 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 430 transitions. Word has length 49 [2020-10-14 17:26:54,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:26:54,704 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 430 transitions. [2020-10-14 17:26:54,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 17:26:54,704 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 430 transitions. [2020-10-14 17:26:54,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 17:26:54,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:26:54,708 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] [2020-10-14 17:26:54,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 17:26:54,708 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:26:54,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:26:54,709 INFO L82 PathProgramCache]: Analyzing trace with hash -890862963, now seen corresponding path program 1 times [2020-10-14 17:26:54,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:26:54,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432330784] [2020-10-14 17:26:54,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:26:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:54,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:54,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 17:26:55,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:26:55,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 718 [2020-10-14 17:26:55,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 17:26:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 17:26:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,832 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:26:55,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 17:26:55,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:55,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 17:26:55,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 17:26:55,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:56,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:56,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:26:56,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:56,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:56,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:56,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:56,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:56,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:56,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:56,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:26:56,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:56,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:26:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:56,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:56,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:56,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:26:56,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:56,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:26:56,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:56,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:56,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:56,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:56,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:56,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 17:26:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:56,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:56,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 17:26:56,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:26:56,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:56,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 17:26:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:56,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:26:56,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:56,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:56,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:56,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 17:26:56,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:56,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:26:56,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:56,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:56,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:56,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:56,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:56,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:56,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:56,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:26:56,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:56,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:26:56,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432330784] [2020-10-14 17:26:56,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:26:56,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 17:26:56,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034229923] [2020-10-14 17:26:56,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 17:26:56,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:26:56,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 17:26:56,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 17:26:56,124 INFO L87 Difference]: Start difference. First operand 365 states and 430 transitions. Second operand 7 states. [2020-10-14 17:26:56,475 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:26:56,864 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-14 17:26:57,237 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:27:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:04,440 INFO L93 Difference]: Finished difference Result 928 states and 1168 transitions. [2020-10-14 17:27:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 17:27:04,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-10-14 17:27:04,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:04,453 INFO L225 Difference]: With dead ends: 928 [2020-10-14 17:27:04,453 INFO L226 Difference]: Without dead ends: 902 [2020-10-14 17:27:04,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-14 17:27:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-14 17:27:04,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 652. [2020-10-14 17:27:04,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-14 17:27:04,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 774 transitions. [2020-10-14 17:27:04,615 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 774 transitions. Word has length 49 [2020-10-14 17:27:04,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:04,615 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 774 transitions. [2020-10-14 17:27:04,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 17:27:04,616 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 774 transitions. [2020-10-14 17:27:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 17:27:04,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:04,620 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] [2020-10-14 17:27:04,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 17:27:04,620 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:04,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1678406285, now seen corresponding path program 1 times [2020-10-14 17:27:04,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:04,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326044076] [2020-10-14 17:27:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:05,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:05,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:06,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:06,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 17:27:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2059 [2020-10-14 17:27:06,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:06,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 17:27:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:07,073 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:07,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:07,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 17:27:07,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:07,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:27:07,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:07,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:07,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:07,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:07,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:07,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:07,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:07,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:07,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 17:27:07,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:07,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:07,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 17:27:07,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:07,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 17:27:07,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:07,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:07,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:07,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:07,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 17:27:07,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:07,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 17:27:07,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:07,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:07,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:07,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:07,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:07,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:07,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:07,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:07,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:07,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326044076] [2020-10-14 17:27:07,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:07,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:07,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090007884] [2020-10-14 17:27:07,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:07,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:07,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:07,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:07,632 INFO L87 Difference]: Start difference. First operand 652 states and 774 transitions. Second operand 8 states. [2020-10-14 17:27:08,026 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:08,368 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-14 17:27:08,700 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:27:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:12,529 INFO L93 Difference]: Finished difference Result 928 states and 1170 transitions. [2020-10-14 17:27:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:12,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-14 17:27:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:12,536 INFO L225 Difference]: With dead ends: 928 [2020-10-14 17:27:12,536 INFO L226 Difference]: Without dead ends: 915 [2020-10-14 17:27:12,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-10-14 17:27:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 652. [2020-10-14 17:27:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-14 17:27:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 773 transitions. [2020-10-14 17:27:12,659 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 773 transitions. Word has length 82 [2020-10-14 17:27:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:12,659 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 773 transitions. [2020-10-14 17:27:12,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 773 transitions. [2020-10-14 17:27:12,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 17:27:12,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:12,663 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] [2020-10-14 17:27:12,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 17:27:12,664 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:12,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:12,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1735664587, now seen corresponding path program 1 times [2020-10-14 17:27:12,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:12,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678516200] [2020-10-14 17:27:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:12,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:13,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:13,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:14,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:14,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 17:27:14,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:14,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2106 [2020-10-14 17:27:14,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:14,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:27:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 17:27:14,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,230 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:15,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:15,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 17:27:15,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:15,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:15,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 17:27:15,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:15,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:27:15,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:15,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:15,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:15,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:15,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:15,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:27:15,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:15,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:27:15,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:15,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 17:27:15,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:15,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:27:15,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:15,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 17:27:15,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:15,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 17:27:15,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:15,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:15,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:15,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 17:27:15,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:15,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 17:27:15,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:15,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:15,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:15,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:15,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:15,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:15,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:15,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:15,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:15,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:15,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678516200] [2020-10-14 17:27:15,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:15,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:15,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127459238] [2020-10-14 17:27:15,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:15,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:15,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:15,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:15,825 INFO L87 Difference]: Start difference. First operand 652 states and 773 transitions. Second operand 8 states. [2020-10-14 17:27:16,177 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:16,572 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-14 17:27:16,930 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:25,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:25,162 INFO L93 Difference]: Finished difference Result 2411 states and 3020 transitions. [2020-10-14 17:27:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 17:27:25,169 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-14 17:27:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:25,179 INFO L225 Difference]: With dead ends: 2411 [2020-10-14 17:27:25,179 INFO L226 Difference]: Without dead ends: 1771 [2020-10-14 17:27:25,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:25,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2020-10-14 17:27:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1325. [2020-10-14 17:27:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2020-10-14 17:27:25,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1585 transitions. [2020-10-14 17:27:25,388 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1585 transitions. Word has length 82 [2020-10-14 17:27:25,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:25,388 INFO L479 AbstractCegarLoop]: Abstraction has 1325 states and 1585 transitions. [2020-10-14 17:27:25,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:25,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1585 transitions. [2020-10-14 17:27:25,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 17:27:25,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:25,391 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] [2020-10-14 17:27:25,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 17:27:25,392 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:25,392 INFO L82 PathProgramCache]: Analyzing trace with hash -2029123077, now seen corresponding path program 1 times [2020-10-14 17:27:25,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:25,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498193110] [2020-10-14 17:27:25,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:25,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:25,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:26,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 17:27:26,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:26,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-10-14 17:27:26,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:26,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 17:27:26,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:26,679 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:26,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:26,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:26,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 17:27:26,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:26,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:26,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:26,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:26,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:26,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:26,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:26,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:26,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:26,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:26,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 17:27:26,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:26,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:26,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:27:26,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:26,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:26,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:26,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:26,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:26,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:26,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:26,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:26,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:26,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:26,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:26,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:26,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:26,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:26,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:26,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:26,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:26,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:26,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:26,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:26,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:26,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:26,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:27:26,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:26,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:26,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:26,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:26,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:26,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:26,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 17:27:26,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:26,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:26,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:27:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:26,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:26,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:27,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:27,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:27,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:27,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 17:27:27,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:27,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:27,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:27,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:27,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:27,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:27,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 17:27:27,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:27,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:27,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:27,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:27,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:27,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:27,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:27,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:27,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:27,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:27,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:27,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:27,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:27,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:27,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:27,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:27,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:27,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:27,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:27,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:27,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:27,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 17:27:27,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:27,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:27,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:27,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:27,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:27,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:27,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:27,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 17:27:27,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:27,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:27,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:27,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:27,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:27,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:27,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:27,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:27,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 17:27:27,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:27,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:27,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:27,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:27,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:27,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:27,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:27,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:27,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:27,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:27,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:27,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:27,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:27,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:27,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:27,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498193110] [2020-10-14 17:27:27,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:27,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:27,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45567068] [2020-10-14 17:27:27,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:27,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:27,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:27,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:27,262 INFO L87 Difference]: Start difference. First operand 1325 states and 1585 transitions. Second operand 8 states. [2020-10-14 17:27:27,559 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:27,937 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-14 17:27:28,270 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:32,053 INFO L93 Difference]: Finished difference Result 1763 states and 2240 transitions. [2020-10-14 17:27:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:32,054 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 17:27:32,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:32,064 INFO L225 Difference]: With dead ends: 1763 [2020-10-14 17:27:32,064 INFO L226 Difference]: Without dead ends: 1760 [2020-10-14 17:27:32,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2020-10-14 17:27:32,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1324. [2020-10-14 17:27:32,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2020-10-14 17:27:32,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1583 transitions. [2020-10-14 17:27:32,347 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1583 transitions. Word has length 83 [2020-10-14 17:27:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:32,347 INFO L479 AbstractCegarLoop]: Abstraction has 1324 states and 1583 transitions. [2020-10-14 17:27:32,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1583 transitions. [2020-10-14 17:27:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 17:27:32,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:32,350 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] [2020-10-14 17:27:32,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 17:27:32,350 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:32,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:32,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1521548494, now seen corresponding path program 1 times [2020-10-14 17:27:32,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:32,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58475070] [2020-10-14 17:27:32,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:32,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:32,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 17:27:33,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:33,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-10-14 17:27:33,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 17:27:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:33,608 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:33,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:33,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 17:27:33,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:33,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:33,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 17:27:33,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:27:33,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:33,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:33,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:33,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:33,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:33,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:33,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:33,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:33,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:33,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:33,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:27:33,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:33,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:33,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 17:27:33,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:27:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:33,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:33,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 17:27:33,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:33,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:33,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:33,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 17:27:33,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:33,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:33,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:33,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:33,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:33,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:33,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:33,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:34,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:34,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:34,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:34,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 17:27:34,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:34,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:34,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:34,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:34,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:34,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:34,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:34,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:27:34,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:34,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:34,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:34,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:34,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:34,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:34,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:34,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:34,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:34,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:34,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:34,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:34,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 17:27:34,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:34,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:34,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:34,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:34,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:34,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:34,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:34,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:34,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58475070] [2020-10-14 17:27:34,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:34,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:34,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90833018] [2020-10-14 17:27:34,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:34,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:34,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:34,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:34,131 INFO L87 Difference]: Start difference. First operand 1324 states and 1583 transitions. Second operand 8 states. [2020-10-14 17:27:34,516 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:34,886 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-14 17:27:35,216 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:27:39,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:39,070 INFO L93 Difference]: Finished difference Result 1762 states and 2238 transitions. [2020-10-14 17:27:39,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:39,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 17:27:39,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:39,080 INFO L225 Difference]: With dead ends: 1762 [2020-10-14 17:27:39,080 INFO L226 Difference]: Without dead ends: 1759 [2020-10-14 17:27:39,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:39,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2020-10-14 17:27:39,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1323. [2020-10-14 17:27:39,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1323 states. [2020-10-14 17:27:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1581 transitions. [2020-10-14 17:27:39,385 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1581 transitions. Word has length 84 [2020-10-14 17:27:39,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:39,385 INFO L479 AbstractCegarLoop]: Abstraction has 1323 states and 1581 transitions. [2020-10-14 17:27:39,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:39,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1581 transitions. [2020-10-14 17:27:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 17:27:39,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:39,389 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] [2020-10-14 17:27:39,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 17:27:39,389 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:39,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:39,390 INFO L82 PathProgramCache]: Analyzing trace with hash -76777634, now seen corresponding path program 1 times [2020-10-14 17:27:39,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:39,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700430627] [2020-10-14 17:27:39,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:39,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:40,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:40,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 17:27:40,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1277 [2020-10-14 17:27:40,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:40,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 17:27:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:41,124 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:41,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:41,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 17:27:41,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:41,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:41,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 17:27:41,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:41,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:27:41,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:41,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:41,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:41,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:41,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:41,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:27:41,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:27:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:41,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 17:27:41,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:27:41,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:41,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:41,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:27:41,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:41,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 17:27:41,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:41,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:41,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:41,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 17:27:41,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:41,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 17:27:41,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:41,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:41,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:41,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:41,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:41,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:41,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:41,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:41,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:41,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:41,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:41,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:41,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:41,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700430627] [2020-10-14 17:27:41,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:41,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:41,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880521057] [2020-10-14 17:27:41,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:41,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:41,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:41,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:41,677 INFO L87 Difference]: Start difference. First operand 1323 states and 1581 transitions. Second operand 8 states. [2020-10-14 17:27:41,963 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:42,323 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-14 17:27:42,675 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:27:46,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:46,721 INFO L93 Difference]: Finished difference Result 1761 states and 2236 transitions. [2020-10-14 17:27:46,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:46,721 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-10-14 17:27:46,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:46,734 INFO L225 Difference]: With dead ends: 1761 [2020-10-14 17:27:46,735 INFO L226 Difference]: Without dead ends: 1758 [2020-10-14 17:27:46,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2020-10-14 17:27:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1322. [2020-10-14 17:27:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2020-10-14 17:27:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1579 transitions. [2020-10-14 17:27:47,018 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1579 transitions. Word has length 85 [2020-10-14 17:27:47,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:47,020 INFO L479 AbstractCegarLoop]: Abstraction has 1322 states and 1579 transitions. [2020-10-14 17:27:47,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:47,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1579 transitions. [2020-10-14 17:27:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 17:27:47,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:47,023 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] [2020-10-14 17:27:47,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 17:27:47,023 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:47,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:47,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1914724817, now seen corresponding path program 1 times [2020-10-14 17:27:47,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:47,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200422070] [2020-10-14 17:27:47,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:47,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:47,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:47,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 17:27:48,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:48,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-10-14 17:27:48,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 17:27:48,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:48,492 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:48,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 17:27:48,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:48,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:48,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:48,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:27:48,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:27:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:48,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:48,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:48,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:48,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:48,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:48,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:48,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:48,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:27:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:48,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 17:27:48,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:27:48,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:48,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:48,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 17:27:48,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:48,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:48,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 17:27:48,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:48,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:48,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:48,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 17:27:48,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:48,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 17:27:48,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:48,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:48,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:48,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:48,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:48,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:48,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:48,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200422070] [2020-10-14 17:27:48,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:48,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:48,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969692960] [2020-10-14 17:27:48,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:48,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:48,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:48,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:48,954 INFO L87 Difference]: Start difference. First operand 1322 states and 1579 transitions. Second operand 8 states. [2020-10-14 17:27:49,274 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-14 17:27:49,659 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-14 17:27:50,002 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:27:54,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:54,002 INFO L93 Difference]: Finished difference Result 1760 states and 2234 transitions. [2020-10-14 17:27:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:54,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-10-14 17:27:54,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:54,016 INFO L225 Difference]: With dead ends: 1760 [2020-10-14 17:27:54,016 INFO L226 Difference]: Without dead ends: 1738 [2020-10-14 17:27:54,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:54,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2020-10-14 17:27:54,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1302. [2020-10-14 17:27:54,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1302 states. [2020-10-14 17:27:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1556 transitions. [2020-10-14 17:27:54,291 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1556 transitions. Word has length 86 [2020-10-14 17:27:54,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:54,292 INFO L479 AbstractCegarLoop]: Abstraction has 1302 states and 1556 transitions. [2020-10-14 17:27:54,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:54,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1556 transitions. [2020-10-14 17:27:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-14 17:27:54,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:54,300 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] [2020-10-14 17:27:54,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 17:27:54,301 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:54,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1987213687, now seen corresponding path program 1 times [2020-10-14 17:27:54,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:54,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750888482] [2020-10-14 17:27:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:54,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:54,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:54,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:54,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:54,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:54,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:59,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:59,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-14 17:27:59,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 17:27:59,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 17:27:59,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:59,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 17:27:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:27:59,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:59,796 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:59,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:59,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:59,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:59,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:27:59,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:59,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:59,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:59,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:59,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:59,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:59,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:59,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 17:27:59,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:59,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:59,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:59,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:59,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:59,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:59,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:59,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:59,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:59,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:59,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:59,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:59,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:59,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:59,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:59,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:59,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:59,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:59,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:59,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:59,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:59,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:59,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:59,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:59,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:59,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:59,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:59,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:59,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:59,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:59,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:27:59,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:59,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:59,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 17:27:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:59,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:00,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:00,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:00,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:04,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:28:04,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 17:28:04,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 17:28:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 17:28:04,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:28:04,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:28:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 17:28:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 17:28:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:28:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:28:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:28:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:28:05,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:28:05,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 17:28:05,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:28:05,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 17:28:05,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:28:05,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:28:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:28:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:28:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:28:05,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:28:05,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:28:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:28:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:28:05,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 17:28:05,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:28:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 17:28:05,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:28:05,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:28:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:28:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:28:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:28:05,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:28:05,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:28:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:28:05,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:28:05,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:28:05,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:28:05,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:28:05,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:28:05,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:28:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:28:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:28:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:28:05,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:28:05,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 17:28:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:28:05,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:28:05,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 17:28:05,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:28:05,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 17:28:05,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:28:05,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:28:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:28:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:28:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 17:28:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:28:05,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:28:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:28:05,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:28:05,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:28:05,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:28:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:28:05,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:28:05,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:28:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:28:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:28:05,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:28:05,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:28:05,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:28:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:28:05,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:28:05,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:28:05,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:28:05,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:28:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:28:05,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:28:05,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:28:05,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:28:05,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:28:05,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:28:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:28:05,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 17:28:05,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 17:28:05,329 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:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) 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:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) 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 [2020-10-14 17:28:05,335 INFO L168 Benchmark]: Toolchain (without parser) took 81184.97 ms. Allocated memory was 147.3 MB in the beginning and 1.1 GB in the end (delta: 983.6 MB). Free memory was 98.1 MB in the beginning and 98.1 MB in the end (delta: -27.6 kB). Peak memory consumption was 983.5 MB. Max. memory is 7.1 GB. [2020-10-14 17:28:05,335 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-14 17:28:05,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1704.16 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 97.7 MB in the beginning and 120.9 MB in the end (delta: -23.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2020-10-14 17:28:05,337 INFO L168 Benchmark]: Boogie Preprocessor took 204.96 ms. Allocated memory is still 207.1 MB. Free memory was 120.9 MB in the beginning and 112.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2020-10-14 17:28:05,338 INFO L168 Benchmark]: RCFGBuilder took 1723.32 ms. Allocated memory was 207.1 MB in the beginning and 252.2 MB in the end (delta: 45.1 MB). Free memory was 112.6 MB in the beginning and 182.7 MB in the end (delta: -70.2 MB). Peak memory consumption was 69.8 MB. Max. memory is 7.1 GB. [2020-10-14 17:28:05,338 INFO L168 Benchmark]: TraceAbstraction took 77546.47 ms. Allocated memory was 252.2 MB in the beginning and 1.1 GB in the end (delta: 878.7 MB). Free memory was 182.7 MB in the beginning and 98.1 MB in the end (delta: 84.6 MB). Peak memory consumption was 963.3 MB. Max. memory is 7.1 GB. [2020-10-14 17:28:05,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1704.16 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 97.7 MB in the beginning and 120.9 MB in the end (delta: -23.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 204.96 ms. Allocated memory is still 207.1 MB. Free memory was 120.9 MB in the beginning and 112.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1723.32 ms. Allocated memory was 207.1 MB in the beginning and 252.2 MB in the end (delta: 45.1 MB). Free memory was 112.6 MB in the beginning and 182.7 MB in the end (delta: -70.2 MB). Peak memory consumption was 69.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 77546.47 ms. Allocated memory was 252.2 MB in the beginning and 1.1 GB in the end (delta: 878.7 MB). Free memory was 182.7 MB in the beginning and 98.1 MB in the end (delta: 84.6 MB). Peak memory consumption was 963.3 MB. Max. memory is 7.1 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...