/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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 12:23:03,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 12:23:03,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 12:23:03,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 12:23:03,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 12:23:03,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 12:23:03,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 12:23:03,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 12:23:03,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 12:23:03,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 12:23:03,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 12:23:03,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 12:23:03,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 12:23:03,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 12:23:03,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 12:23:03,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 12:23:03,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 12:23:03,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 12:23:03,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 12:23:03,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 12:23:03,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 12:23:03,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 12:23:03,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 12:23:03,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 12:23:03,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 12:23:03,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 12:23:03,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 12:23:03,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 12:23:03,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 12:23:03,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 12:23:03,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 12:23:03,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 12:23:03,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 12:23:03,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 12:23:03,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 12:23:03,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 12:23:03,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 12:23:03,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 12:23:03,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 12:23:03,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 12:23:03,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 12:23:03,960 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 12:23:03,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 12:23:03,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 12:23:04,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 12:23:04,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 12:23:04,001 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 12:23:04,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 12:23:04,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 12:23:04,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 12:23:04,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 12:23:04,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 12:23:04,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 12:23:04,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 12:23:04,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 12:23:04,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 12:23:04,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 12:23:04,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 12:23:04,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 12:23:04,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 12:23:04,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 12:23:04,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 12:23:04,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 12:23:04,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 12:23:04,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 12:23:04,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 12:23:04,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 12:23:04,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 12:23:04,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 12:23:04,007 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 12:23:04,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 12:23:04,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 12:23:04,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 12:23:04,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 12:23:04,314 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 12:23:04,315 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-14 12:23:04,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c48352d/ec63ebba7169420f94d6f7badd74d07b/FLAGd298dfe72 [2020-10-14 12:23:05,012 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 12:23:05,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-14 12:23:05,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c48352d/ec63ebba7169420f94d6f7badd74d07b/FLAGd298dfe72 [2020-10-14 12:23:05,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c48352d/ec63ebba7169420f94d6f7badd74d07b [2020-10-14 12:23:05,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 12:23:05,272 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 12:23:05,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 12:23:05,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 12:23:05,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 12:23:05,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:23:05" (1/1) ... [2020-10-14 12:23:05,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6957b238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:05, skipping insertion in model container [2020-10-14 12:23:05,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:23:05" (1/1) ... [2020-10-14 12:23:05,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 12:23:05,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 12:23:06,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 12:23:06,403 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 12:23:06,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 12:23:06,685 INFO L208 MainTranslator]: Completed translation [2020-10-14 12:23:06,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06 WrapperNode [2020-10-14 12:23:06,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 12:23:06,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 12:23:06,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 12:23:06,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 12:23:06,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (1/1) ... [2020-10-14 12:23:06,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (1/1) ... [2020-10-14 12:23:06,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (1/1) ... [2020-10-14 12:23:06,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (1/1) ... [2020-10-14 12:23:06,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (1/1) ... [2020-10-14 12:23:06,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (1/1) ... [2020-10-14 12:23:06,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (1/1) ... [2020-10-14 12:23:06,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 12:23:06,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 12:23:06,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 12:23:06,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 12:23:06,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (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 12:23:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 12:23:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 12:23:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 12:23:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 12:23:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 12:23:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 12:23:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 12:23:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 12:23:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 12:23:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 12:23:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 12:23:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 12:23:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_probe [2020-10-14 12:23:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_disconnect [2020-10-14 12:23:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_init [2020-10-14 12:23:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_exit [2020-10-14 12:23:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-14 12:23:06,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 12:23:06,874 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-14 12:23:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_2 [2020-10-14 12:23:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_3 [2020-10-14 12:23:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_4 [2020-10-14 12:23:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_5 [2020-10-14 12:23:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-14 12:23:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-14 12:23:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-14 12:23:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-14 12:23:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-14 12:23:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-14 12:23:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-14 12:23:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-14 12:23:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-14 12:23:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-14 12:23:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-14 12:23:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-14 12:23:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-14 12:23:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-14 12:23:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-14 12:23:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 12:23:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-14 12:23:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cypress_load_firmware [2020-10-14 12:23:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-14 12:23:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 12:23:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2020-10-14 12:23:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2020-10-14 12:23:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-14 12:23:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-14 12:23:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 12:23:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 12:23:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 12:23:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 12:23:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-14 12:23:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-14 12:23:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_3 [2020-10-14 12:23:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-14 12:23:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_2 [2020-10-14 12:23:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-14 12:23:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_4 [2020-10-14 12:23:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-14 12:23:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_5 [2020-10-14 12:23:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-14 12:23:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-14 12:23:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-14 12:23:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 12:23:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 12:23:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 12:23:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 12:23:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 12:23:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 12:23:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 12:23:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 12:23:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 12:23:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 12:23:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 12:23:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 12:23:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 12:23:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 12:23:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 12:23:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-14 12:23:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2020-10-14 12:23:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2020-10-14 12:23:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure cypress_load_firmware [2020-10-14 12:23:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_probe [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_disconnect [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_init [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_exit [2020-10-14 12:23:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 12:23:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 12:23:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 12:23:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-14 12:23:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-14 12:23:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-14 12:23:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-14 12:23:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-14 12:23:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 12:23:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 12:23:07,515 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 12:23:07,957 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-14 12:23:07,995 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 12:23:07,996 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 12:23:08,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:23:08 BoogieIcfgContainer [2020-10-14 12:23:08,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 12:23:08,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 12:23:08,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 12:23:08,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 12:23:08,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:23:05" (1/3) ... [2020-10-14 12:23:08,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c754d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:23:08, skipping insertion in model container [2020-10-14 12:23:08,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:06" (2/3) ... [2020-10-14 12:23:08,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c754d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:23:08, skipping insertion in model container [2020-10-14 12:23:08,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:23:08" (3/3) ... [2020-10-14 12:23:08,008 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-14 12:23:08,018 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 12:23:08,025 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 12:23:08,038 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 12:23:08,062 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 12:23:08,063 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 12:23:08,063 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 12:23:08,063 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 12:23:08,063 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 12:23:08,063 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 12:23:08,064 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 12:23:08,064 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 12:23:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-10-14 12:23:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 12:23:08,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:08,097 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] [2020-10-14 12:23:08,097 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:08,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1549851085, now seen corresponding path program 1 times [2020-10-14 12:23:08,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:08,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972870311] [2020-10-14 12:23:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:08,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:09,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:09,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:09,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 12:23:09,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:23:09,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 830 [2020-10-14 12:23:09,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:09,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:23:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 12:23:09,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 12:23:09,988 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:09,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:10,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:10,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:10,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:10,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 12:23:10,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:10,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:23:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:10,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:10,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:10,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:10,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:10,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 12:23:10,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:10,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:23:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:10,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:10,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:10,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:10,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:10,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:10,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:23:10,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:10,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:10,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:23:10,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 12:23:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:10,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:10,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:10,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 12:23:10,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:10,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 12:23:10,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:10,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 12:23:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:10,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:10,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:10,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:10,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 12:23:10,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:10,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:10,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:10,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:10,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:10,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:10,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:10,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:10,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:10,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:10,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:10,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:10,436 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 12:23:10,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972870311] [2020-10-14 12:23:10,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:10,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 12:23:10,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311963343] [2020-10-14 12:23:10,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 12:23:10,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:10,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 12:23:10,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 12:23:10,462 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 6 states. [2020-10-14 12:23:10,820 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:11,306 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 12:23:11,723 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:13,033 INFO L93 Difference]: Finished difference Result 466 states and 604 transitions. [2020-10-14 12:23:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 12:23:13,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-14 12:23:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:13,049 INFO L225 Difference]: With dead ends: 466 [2020-10-14 12:23:13,049 INFO L226 Difference]: Without dead ends: 248 [2020-10-14 12:23:13,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-14 12:23:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-14 12:23:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 189. [2020-10-14 12:23:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-14 12:23:13,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 227 transitions. [2020-10-14 12:23:13,155 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 227 transitions. Word has length 39 [2020-10-14 12:23:13,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:13,156 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 227 transitions. [2020-10-14 12:23:13,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 12:23:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 227 transitions. [2020-10-14 12:23:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 12:23:13,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:13,160 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] [2020-10-14 12:23:13,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 12:23:13,160 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:13,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:13,161 INFO L82 PathProgramCache]: Analyzing trace with hash 800558865, now seen corresponding path program 1 times [2020-10-14 12:23:13,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:13,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259702107] [2020-10-14 12:23:13,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:13,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:13,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:14,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:14,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 12:23:14,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:23:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 945 [2020-10-14 12:23:14,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:14,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 12:23:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 12:23:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:14,560 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:14,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:14,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:14,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:14,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:14,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:14,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 12:23:14,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:14,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:14,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:14,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:14,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:14,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:14,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:14,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:14,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:14,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:14,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:14,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:14,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:14,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:14,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:14,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:14,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:14,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:14,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:14,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:14,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:14,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 12:23:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:14,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:14,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:14,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 12:23:14,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:14,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:23:14,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:14,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 12:23:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:14,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:14,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:14,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 12:23:14,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:14,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:14,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:14,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:14,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:14,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:14,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:14,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:14,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:14,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:14,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:14,820 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 12:23:14,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259702107] [2020-10-14 12:23:14,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:14,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 12:23:14,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891551339] [2020-10-14 12:23:14,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 12:23:14,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:14,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 12:23:14,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 12:23:14,824 INFO L87 Difference]: Start difference. First operand 189 states and 227 transitions. Second operand 6 states. [2020-10-14 12:23:15,124 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:15,547 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 12:23:15,955 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 12:23:17,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:17,971 INFO L93 Difference]: Finished difference Result 430 states and 538 transitions. [2020-10-14 12:23:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 12:23:17,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-14 12:23:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:17,985 INFO L225 Difference]: With dead ends: 430 [2020-10-14 12:23:17,985 INFO L226 Difference]: Without dead ends: 405 [2020-10-14 12:23:17,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:23:17,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-10-14 12:23:18,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 307. [2020-10-14 12:23:18,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-14 12:23:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 376 transitions. [2020-10-14 12:23:18,056 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 376 transitions. Word has length 40 [2020-10-14 12:23:18,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:18,056 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 376 transitions. [2020-10-14 12:23:18,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 12:23:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 376 transitions. [2020-10-14 12:23:18,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 12:23:18,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:18,059 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 12:23:18,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 12:23:18,059 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:18,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:18,060 INFO L82 PathProgramCache]: Analyzing trace with hash 135605972, now seen corresponding path program 1 times [2020-10-14 12:23:18,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:18,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444114455] [2020-10-14 12:23:18,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:18,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:18,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:18,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 12:23:18,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:18,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-14 12:23:18,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:18,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:23:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:23:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 12:23:18,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:19,019 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:19,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:19,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 12:23:19,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:23:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:19,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:19,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:23:19,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:23:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:19,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:19,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:19,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:23:19,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:19,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 12:23:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:19,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 12:23:19,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:23:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:19,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:19,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:23:19,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:19,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:19,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:19,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:19,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:19,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:19,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:19,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:23:19,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:19,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:19,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:19,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:19,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:19,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:19,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:19,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:19,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:19,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:19,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:19,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:19,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 12:23:19,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444114455] [2020-10-14 12:23:19,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:19,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:23:19,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028164536] [2020-10-14 12:23:19,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:23:19,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:19,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:23:19,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:23:19,478 INFO L87 Difference]: Start difference. First operand 307 states and 376 transitions. Second operand 7 states. [2020-10-14 12:23:19,749 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:20,147 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 12:23:20,500 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:22,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:22,951 INFO L93 Difference]: Finished difference Result 1046 states and 1317 transitions. [2020-10-14 12:23:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 12:23:22,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-10-14 12:23:22,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:22,959 INFO L225 Difference]: With dead ends: 1046 [2020-10-14 12:23:22,959 INFO L226 Difference]: Without dead ends: 751 [2020-10-14 12:23:22,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:23:22,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-10-14 12:23:23,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 603. [2020-10-14 12:23:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-14 12:23:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 740 transitions. [2020-10-14 12:23:23,055 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 740 transitions. Word has length 56 [2020-10-14 12:23:23,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:23,055 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 740 transitions. [2020-10-14 12:23:23,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:23:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 740 transitions. [2020-10-14 12:23:23,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 12:23:23,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:23,058 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 12:23:23,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 12:23:23,059 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:23,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:23,059 INFO L82 PathProgramCache]: Analyzing trace with hash -91361811, now seen corresponding path program 1 times [2020-10-14 12:23:23,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:23,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076095866] [2020-10-14 12:23:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:23,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:23,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:23,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 12:23:23,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-14 12:23:23,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:23,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:23:23,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:23:23,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 12:23:23,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:23,936 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:23,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:23,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:24,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 12:23:24,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:23:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:24,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:24,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:24,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:24,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:23:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:24,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:24,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:24,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:24,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:23:24,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:24,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 12:23:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:24,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 12:23:24,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:23:24,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:24,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:24,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 12:23:24,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:24,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:24,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:24,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:24,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:24,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:24,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:24,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:24,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:23:24,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:24,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:24,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:24,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:24,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:24,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:24,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:24,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:24,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:24,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 12:23:24,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076095866] [2020-10-14 12:23:24,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:24,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:23:24,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100665544] [2020-10-14 12:23:24,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:23:24,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:24,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:23:24,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:23:24,329 INFO L87 Difference]: Start difference. First operand 603 states and 740 transitions. Second operand 7 states. [2020-10-14 12:23:24,656 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:25,037 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 12:23:25,388 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 12:23:27,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:27,784 INFO L93 Difference]: Finished difference Result 749 states and 938 transitions. [2020-10-14 12:23:27,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 12:23:27,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-14 12:23:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:27,792 INFO L225 Difference]: With dead ends: 749 [2020-10-14 12:23:27,792 INFO L226 Difference]: Without dead ends: 746 [2020-10-14 12:23:27,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:23:27,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-10-14 12:23:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 604. [2020-10-14 12:23:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-14 12:23:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 741 transitions. [2020-10-14 12:23:27,892 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 741 transitions. Word has length 57 [2020-10-14 12:23:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:27,893 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 741 transitions. [2020-10-14 12:23:27,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:23:27,893 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 741 transitions. [2020-10-14 12:23:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 12:23:27,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:27,896 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 12:23:27,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 12:23:27,896 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:27,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:27,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1462576375, now seen corresponding path program 1 times [2020-10-14 12:23:27,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:27,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518076082] [2020-10-14 12:23:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:27,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 12:23:28,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 12:23:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:23:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 12:23:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:28,508 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:28,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:28,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 12:23:28,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:23:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:28,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:28,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:28,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:23:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:28,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:28,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:28,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:23:28,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:28,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 12:23:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:28,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 12:23:28,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:23:28,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:28,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:23:28,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:28,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:28,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:28,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:28,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:28,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:28,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:23:28,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:28,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:28,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:28,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:28,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:28,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:28,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 12:23:28,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518076082] [2020-10-14 12:23:28,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:28,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:23:28,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014556267] [2020-10-14 12:23:28,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:23:28,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:28,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:23:28,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:23:28,892 INFO L87 Difference]: Start difference. First operand 604 states and 741 transitions. Second operand 7 states. [2020-10-14 12:23:29,224 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:29,594 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 12:23:29,936 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 12:23:31,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:31,298 INFO L93 Difference]: Finished difference Result 746 states and 935 transitions. [2020-10-14 12:23:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 12:23:31,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-10-14 12:23:31,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:31,305 INFO L225 Difference]: With dead ends: 746 [2020-10-14 12:23:31,306 INFO L226 Difference]: Without dead ends: 743 [2020-10-14 12:23:31,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:23:31,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-10-14 12:23:31,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 603. [2020-10-14 12:23:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-14 12:23:31,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 739 transitions. [2020-10-14 12:23:31,403 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 739 transitions. Word has length 58 [2020-10-14 12:23:31,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:31,404 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 739 transitions. [2020-10-14 12:23:31,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:23:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 739 transitions. [2020-10-14 12:23:31,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 12:23:31,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:31,406 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 12:23:31,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 12:23:31,407 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:31,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1904942544, now seen corresponding path program 1 times [2020-10-14 12:23:31,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:31,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931357220] [2020-10-14 12:23:31,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:31,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:31,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:31,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 12:23:31,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-14 12:23:31,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:31,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:23:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 12:23:31,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:32,072 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:32,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:32,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 12:23:32,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:23:32,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:32,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:32,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:32,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:23:32,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:32,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:32,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:32,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:23:32,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:32,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 12:23:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:32,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 12:23:32,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:23:32,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:32,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:32,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:23:32,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:32,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:32,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:32,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:32,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:32,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:32,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:32,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:32,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:32,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:32,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:32,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:32,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:32,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:32,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:32,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:32,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:32,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 12:23:32,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931357220] [2020-10-14 12:23:32,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:32,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:23:32,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348968468] [2020-10-14 12:23:32,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:23:32,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:32,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:23:32,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:23:32,426 INFO L87 Difference]: Start difference. First operand 603 states and 739 transitions. Second operand 7 states. [2020-10-14 12:23:32,718 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:33,125 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 12:23:33,470 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 12:23:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:34,865 INFO L93 Difference]: Finished difference Result 745 states and 933 transitions. [2020-10-14 12:23:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 12:23:34,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-10-14 12:23:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:34,871 INFO L225 Difference]: With dead ends: 745 [2020-10-14 12:23:34,871 INFO L226 Difference]: Without dead ends: 720 [2020-10-14 12:23:34,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:23:34,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-14 12:23:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 583. [2020-10-14 12:23:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 12:23:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 715 transitions. [2020-10-14 12:23:34,958 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 715 transitions. Word has length 59 [2020-10-14 12:23:34,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:34,959 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 715 transitions. [2020-10-14 12:23:34,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:23:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 715 transitions. [2020-10-14 12:23:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 12:23:34,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:34,962 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 12:23:34,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 12:23:34,962 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:34,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:34,963 INFO L82 PathProgramCache]: Analyzing trace with hash 840875240, now seen corresponding path program 1 times [2020-10-14 12:23:34,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:34,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233344291] [2020-10-14 12:23:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:35,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:35,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:35,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:35,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:40,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:40,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 12:23:40,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 12:23:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 12:23:40,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:40,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:23:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 12:23:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:23:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:40,446 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:40,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:40,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:40,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:40,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:40,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 12:23:40,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:40,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:40,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:40,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:40,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:40,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:40,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:40,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:40,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:40,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:40,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:40,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:40,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:40,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:40,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:40,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:40,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:40,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:40,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:23:40,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:40,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:40,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:40,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 12:23:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:40,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 12:23:41,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 12:23:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-14 12:23:41,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 12:23:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:41,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 12:23:41,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:23:41,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 12:23:41,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:41,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 12:23:41,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:23:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 12:23:41,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:41,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:23:41,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 12:23:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 12:23:41,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:23:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 12:23:41,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:23:41,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 12:23:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:41,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:23:41,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 12:23:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:41,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:23:41,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 12:23:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:41,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:41,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:23:41,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:41,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:41,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:41,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:41,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:41,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:41,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:41,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:41,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:41,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:41,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:41,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:41,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 12:23:41,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233344291] [2020-10-14 12:23:41,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:41,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 12:23:41,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063216165] [2020-10-14 12:23:41,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 12:23:41,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:41,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 12:23:41,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 12:23:41,752 INFO L87 Difference]: Start difference. First operand 583 states and 715 transitions. Second operand 10 states. [2020-10-14 12:23:42,036 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:42,484 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 12:23:42,839 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 12:23:45,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:45,300 INFO L93 Difference]: Finished difference Result 1514 states and 1935 transitions. [2020-10-14 12:23:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 12:23:45,301 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2020-10-14 12:23:45,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:45,307 INFO L225 Difference]: With dead ends: 1514 [2020-10-14 12:23:45,307 INFO L226 Difference]: Without dead ends: 943 [2020-10-14 12:23:45,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-14 12:23:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2020-10-14 12:23:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 715. [2020-10-14 12:23:45,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2020-10-14 12:23:45,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 909 transitions. [2020-10-14 12:23:45,396 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 909 transitions. Word has length 105 [2020-10-14 12:23:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:45,397 INFO L479 AbstractCegarLoop]: Abstraction has 715 states and 909 transitions. [2020-10-14 12:23:45,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 12:23:45,397 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 909 transitions. [2020-10-14 12:23:45,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 12:23:45,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:45,400 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 12:23:45,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 12:23:45,400 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:45,401 INFO L82 PathProgramCache]: Analyzing trace with hash 576053599, now seen corresponding path program 1 times [2020-10-14 12:23:45,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:45,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946312911] [2020-10-14 12:23:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:45,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:45,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:50,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:50,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:50,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-14 12:23:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 12:23:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 12:23:50,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:50,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:23:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 12:23:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 12:23:50,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:50,845 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:23:50,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:50,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:50,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:50,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:50,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 12:23:50,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:50,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:50,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:50,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:50,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:50,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:50,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:50,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:50,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:50,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:23:50,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:50,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:50,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:50,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:50,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:50,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:50,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:50,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:50,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 12:23:50,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:50,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 12:23:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:51,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:23:51,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:51,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:51,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:23:51,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:51,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:23:51,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:51,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:51,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:51,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:23:51,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 12:23:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 12:23:51,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:23:51,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-14 12:23:51,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:23:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 12:23:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 12:23:51,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 12:23:51,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 12:23:51,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:23:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 12:23:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 12:23:51,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 12:23:51,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 12:23:51,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:23:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 12:23:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 12:23:51,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:51,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 12:23:51,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 12:23:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 12:23:51,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 12:23:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 12:23:51,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 12:23:51,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 12:23:51,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:51,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 12:23:51,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:23:51,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 12:23:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:51,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:23:51,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:51,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 12:23:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:51,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:51,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:51,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 12:23:51,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:51,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:23:51,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:51,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 12:23:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:51,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:51,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:52,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:52,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:52,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 12:23:52,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:52,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:52,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:52,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:52,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:52,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:52,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:52,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:52,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:52,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:52,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 12:23:52,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:52,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:52,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:52,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:52,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 12:23:52,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946312911] [2020-10-14 12:23:52,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:52,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 12:23:52,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256247885] [2020-10-14 12:23:52,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 12:23:52,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:52,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 12:23:52,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:23:52,050 INFO L87 Difference]: Start difference. First operand 715 states and 909 transitions. Second operand 13 states. [2020-10-14 12:23:52,349 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:23:53,627 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 12:23:54,018 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 12:23:54,366 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 12:23:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:55,842 INFO L93 Difference]: Finished difference Result 1534 states and 1993 transitions. [2020-10-14 12:23:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 12:23:55,848 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-10-14 12:23:55,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:55,853 INFO L225 Difference]: With dead ends: 1534 [2020-10-14 12:23:55,853 INFO L226 Difference]: Without dead ends: 830 [2020-10-14 12:23:55,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-14 12:23:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-10-14 12:23:55,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 715. [2020-10-14 12:23:55,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2020-10-14 12:23:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 905 transitions. [2020-10-14 12:23:55,942 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 905 transitions. Word has length 124 [2020-10-14 12:23:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:55,943 INFO L479 AbstractCegarLoop]: Abstraction has 715 states and 905 transitions. [2020-10-14 12:23:55,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 12:23:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 905 transitions. [2020-10-14 12:23:55,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 12:23:55,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:55,947 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 12:23:55,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 12:23:55,947 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:55,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:55,947 INFO L82 PathProgramCache]: Analyzing trace with hash -802787554, now seen corresponding path program 1 times [2020-10-14 12:23:55,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:55,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457623221] [2020-10-14 12:23:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:56,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:56,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:56,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 12:24:01,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 12:24:01,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 12:24:01,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 12:24:01,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-14 12:24:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 12:24:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,399 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 12:24:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:24:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:24:01,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 12:24:01,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:24:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:24:01,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:24:01,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:24:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:24:01,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 12:24:01,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 12:24:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:24:01,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:24:01,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:24:01,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:24:01,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:24:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:24:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:24:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:24:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:24:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:01,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:01,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:24:01,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:24:01,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:01,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:24:01,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 12:24:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:01,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:01,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 12:24:02,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 12:24:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-10-14 12:24:02,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 12:24:02,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 12:24:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 12:24:02,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:24:02,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:02,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:02,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:24:02,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 12:24:02,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:24:02,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:02,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:24:02,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 12:24:02,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:24:02,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:02,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:02,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:24:02,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 12:24:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:24:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:24:02,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:02,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:24:02,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 12:24:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 12:24:02,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 12:24:02,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 12:24:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 12:24:02,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:24:02,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 12:24:02,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 12:24:02,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 12:24:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 12:24:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:24:02,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 12:24:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:24:02,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 12:24:02,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:02,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 12:24:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 12:24:02,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:24:02,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:24:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 12:24:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:02,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:24:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 12:24:02,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:24:02,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:02,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:02,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:02,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:24:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:24:02,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:24:02,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:24:02,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:24:02,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:24:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 12:24:02,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:24:02,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:24:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:24:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:24:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:24:02,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:24:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 12:24:02,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457623221] [2020-10-14 12:24:02,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:24:02,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 12:24:02,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505857741] [2020-10-14 12:24:02,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 12:24:02,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:24:02,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 12:24:02,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-14 12:24:02,940 INFO L87 Difference]: Start difference. First operand 715 states and 905 transitions. Second operand 16 states. [2020-10-14 12:24:03,275 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 12:24:03,821 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-14 12:24:04,279 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 12:24:05,958 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2020-10-14 12:24:06,402 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2020-10-14 12:24:06,829 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2020-10-14 12:24:08,987 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-14 12:24:09,356 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-14 12:24:09,704 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-14 12:24:10,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:24:10,398 INFO L93 Difference]: Finished difference Result 1560 states and 2028 transitions. [2020-10-14 12:24:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-14 12:24:10,399 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 130 [2020-10-14 12:24:10,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:24:10,406 INFO L225 Difference]: With dead ends: 1560 [2020-10-14 12:24:10,406 INFO L226 Difference]: Without dead ends: 1159 [2020-10-14 12:24:10,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=412, Invalid=1658, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 12:24:10,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2020-10-14 12:24:10,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1031. [2020-10-14 12:24:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 12:24:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1314 transitions. [2020-10-14 12:24:10,552 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1314 transitions. Word has length 130 [2020-10-14 12:24:10,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:24:10,553 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1314 transitions. [2020-10-14 12:24:10,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 12:24:10,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1314 transitions. [2020-10-14 12:24:10,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 12:24:10,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:24:10,557 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 12:24:10,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 12:24:10,558 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:24:10,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:24:10,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1412874651, now seen corresponding path program 1 times [2020-10-14 12:24:10,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:24:10,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883132270] [2020-10-14 12:24:10,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:24:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 12:24:10,672 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 12:24:10,672 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 12:24:10,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 12:24:10,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:24:10 BoogieIcfgContainer [2020-10-14 12:24:10,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 12:24:10,735 INFO L168 Benchmark]: Toolchain (without parser) took 65461.65 ms. Allocated memory was 146.3 MB in the beginning and 954.7 MB in the end (delta: 808.5 MB). Free memory was 97.1 MB in the beginning and 771.2 MB in the end (delta: -674.2 MB). Peak memory consumption was 134.3 MB. Max. memory is 7.1 GB. [2020-10-14 12:24:10,742 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 12:24:10,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1412.63 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 96.6 MB in the beginning and 134.6 MB in the end (delta: -38.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-10-14 12:24:10,748 INFO L168 Benchmark]: Boogie Preprocessor took 106.59 ms. Allocated memory is still 206.6 MB. Free memory was 134.6 MB in the beginning and 128.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2020-10-14 12:24:10,748 INFO L168 Benchmark]: RCFGBuilder took 1207.52 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 128.5 MB in the beginning and 118.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2020-10-14 12:24:10,749 INFO L168 Benchmark]: TraceAbstraction took 62730.60 ms. Allocated memory was 237.0 MB in the beginning and 954.7 MB in the end (delta: 717.8 MB). Free memory was 118.1 MB in the beginning and 771.2 MB in the end (delta: -653.2 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. [2020-10-14 12:24:10,759 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1412.63 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 96.6 MB in the beginning and 134.6 MB in the end (delta: -38.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.59 ms. Allocated memory is still 206.6 MB. Free memory was 134.6 MB in the beginning and 128.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1207.52 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 128.5 MB in the beginning and 118.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 62730.60 ms. Allocated memory was 237.0 MB in the beginning and 954.7 MB in the end (delta: 717.8 MB). Free memory was 118.1 MB in the beginning and 771.2 MB in the end (delta: -653.2 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3371]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 3541. Possible FailurePath: [L3394] int ldv_state_variable_1 ; [L3395] int LDV_IN_INTERRUPT = 1; [L3396] int usb_counter ; [L3397] int ref_cnt ; [L3398] int ldv_state_variable_0 ; [L3399] struct usb_interface *go7007_loader_driver_group1 ; [L3405-L3410] struct fw_config fw_configs[6U] = { {6467U, 41552U, "go7007/s2250-1.fw", "go7007/s2250-2.fw"}, {2363U, 40962U, "go7007/px-m402u.fw", (char const *)0}, {2363U, 40964U, "go7007/px-tv402u.fw", (char const *)0}, {3761U, 26214U, "go7007/lr192.fw", (char const *)0}, {3761U, 26216U, "go7007/wis-startrek.fw", (char const *)0}, {0U, 0U, (char const *)0, (char const *)0}}; [L3506-L3520] static struct usb_device_id const go7007_loader_ids[6U] = { {3U, 6467U, 41552U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2363U, 40962U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2363U, 40964U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3761U, 26214U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3761U, 26216U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L3521] struct usb_device_id const __mod_usb_device_table ; [L3522-L3536] static struct usb_driver go7007_loader_driver = {"go7007-loader", & go7007_loader_probe, & go7007_loader_disconnect, 0, 0, 0, 0, 0, 0, (struct usb_device_id const *)(& go7007_loader_ids), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3552] int ldv_retval_0 ; [L3553] int ldv_retval_1 ; [L3710] int INTERF_STATE = 0; [L3711] int SERIAL_STATE = 0; [L3712] void *usb_intfdata = 0; [L3713] struct urb *usb_urb = 0; [L3714] struct usb_device *usb_dev = 0; [L3715] int dev_counter = 0; [L3716] int completeFnIntCounter = 0; [L3717] int completeFnBulkCounter = 0; [L3718] void (*completeFnInt)(struct urb * ) ; [L3719] void (*completeFnBulk)(struct urb * ) ; [L3567] struct usb_device_id *ldvarg0 ; [L3568] void *tmp ; [L3569] int tmp___0 ; [L3570] int tmp___1 ; [L3571] int tmp___2 ; [L3573] CALL, EXPR ldv_zalloc(32UL) [L3336] void *p ; [L3337] void *tmp ; [L3338] int tmp___0 ; [L3340] tmp___0 = __VERIFIER_nondet_int() [L3341] COND TRUE tmp___0 != 0 [L3342] return ((void *)0); [L3573] RET, EXPR ldv_zalloc(32UL) [L3573] tmp = ldv_zalloc(32UL) [L3574] ldvarg0 = (struct usb_device_id *)tmp [L3575] FCALL ldv_initialize() [L3576] ldv_state_variable_1 = 0 [L3577] ref_cnt = 0 [L3578] ldv_state_variable_0 = 1 [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3612] case 1: [L3613] COND TRUE ldv_state_variable_0 != 0 [L3614] tmp___2 = __VERIFIER_nondet_int() [L3616] case 0: [L3624] case 1: [L3625] COND TRUE ldv_state_variable_0 == 1 [L3626] CALL, EXPR go7007_loader_driver_init() [L3539] int tmp ; [L3541] CALL, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3682] ldv_func_ret_type ldv_func_res ; [L3683] int tmp ; [L3685] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3961] return __VERIFIER_nondet_int(); [L3685] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3685] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3686] ldv_func_res = tmp [L3687] ldv_state_variable_1 = 1 [L3688] usb_counter = 0 [L3689] CALL ldv_usb_driver_1() [L3558] void *tmp ; [L3560] CALL, EXPR ldv_zalloc(1520UL) [L3336] void *p ; [L3337] void *tmp ; [L3338] int tmp___0 ; [L3340] tmp___0 = __VERIFIER_nondet_int() [L3341] COND TRUE tmp___0 != 0 [L3342] return ((void *)0); [L3560] RET, EXPR ldv_zalloc(1520UL) [L3560] tmp = ldv_zalloc(1520UL) [L3561] go7007_loader_driver_group1 = (struct usb_interface *)tmp [L3689] RET ldv_usb_driver_1() [L3690] return (ldv_func_res); [L3541] RET, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3541] tmp = ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3542] return (tmp); [L3626] RET, EXPR go7007_loader_driver_init() [L3626] ldv_retval_1 = go7007_loader_driver_init() [L3627] COND TRUE ldv_retval_1 == 0 [L3628] ldv_state_variable_0 = 3 [L3631] COND FALSE !(ldv_retval_1 != 0) [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3583] COND TRUE ldv_state_variable_1 != 0 [L3584] tmp___1 = __VERIFIER_nondet_int() [L3586] case 0: [L3587] COND TRUE ldv_state_variable_1 == 1 [L3588] CALL, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3413] struct usb_device *usbdev ; [L3414] struct firmware const *fw ; [L3415] u16 vendor ; [L3416] u16 product ; [L3417] char const *fw1 ; [L3418] char const *fw2 ; [L3419] int ret ; [L3420] int i ; [L3421] struct usb_device *tmp ; [L3422] int tmp___0 ; [L3423] int tmp___1 ; [L3425] CALL, EXPR interface_to_usbdev(interface) [L3658] struct usb_device *tmp ; [L3660] CALL, EXPR ldv_interface_to_usbdev() [L3805] void *result ; [L3806] void *tmp ; [L3808] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) [L3319] void *p ; [L3320] void *tmp ; [L3321] int tmp___0 ; [L3323] tmp___0 = __VERIFIER_nondet_int() [L3324] COND FALSE !(tmp___0 != 0) [L3327] tmp = malloc(size) [L3328] p = tmp [L3329] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3315] COND FALSE !(!cond) [L3329] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3330] return (p); [L3808] RET, EXPR ldv_malloc(sizeof(struct usb_device)) [L3808] tmp = ldv_malloc(sizeof(struct usb_device)) [L3809] result = tmp [L3810] COND TRUE (unsigned long )result != (unsigned long )((void *)0) [L3814] return (result); [L3660] RET, EXPR ldv_interface_to_usbdev() [L3660] tmp = ldv_interface_to_usbdev() [L3661] return (tmp); [L3425] RET, EXPR interface_to_usbdev(interface) [L3425] tmp = interface_to_usbdev(interface) [L3426] CALL, EXPR ldv_usb_get_dev_2(tmp) [L3666] struct usb_device *tmp ; [L3668] CALL, EXPR ldv_get_dev(ldv_func_arg1) [L3819] int tmp ; [L3821] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) [L3822] CALL, EXPR ldv_undef_int() [L3353] int tmp ; [L3355] tmp = __VERIFIER_nondet_int() [L3356] return (tmp); [L3822] RET, EXPR ldv_undef_int() [L3822] tmp = ldv_undef_int() [L3823] COND TRUE \read(tmp) [L3824] dev_counter = dev_counter + 1 [L3825] usb_dev = data [L3833] return (usb_dev); [L3668] RET, EXPR ldv_get_dev(ldv_func_arg1) [L3668] tmp = ldv_get_dev(ldv_func_arg1) [L3669] return (tmp); [L3426] RET, EXPR ldv_usb_get_dev_2(tmp) [L3426] usbdev = ldv_usb_get_dev_2(tmp) [L3427] COND FALSE !((unsigned long )usbdev == (unsigned long )((struct usb_device *)0)) [L3431] EXPR usbdev->descriptor.bNumConfigurations [L3431] COND TRUE (unsigned int )usbdev->descriptor.bNumConfigurations != 1U [L3433] return (-19); [L3433] return (-19); [L3588] RET, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3588] ldv_retval_0 = go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3589] COND FALSE !(ldv_retval_0 == 0) [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3612] case 1: [L3613] COND TRUE ldv_state_variable_0 != 0 [L3614] tmp___2 = __VERIFIER_nondet_int() [L3616] case 0: [L3617] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L3618] CALL go7007_loader_driver_exit() [L3548] CALL ldv_usb_deregister_5(& go7007_loader_driver) [L3696] FCALL usb_deregister(arg) [L3697] ldv_state_variable_1 = 0 [L3548] RET ldv_usb_deregister_5(& go7007_loader_driver) [L3618] RET go7007_loader_driver_exit() [L3619] ldv_state_variable_0 = 2 [L3652] CALL ldv_check_final_state() [L3911] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) [L3915] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) [L3917] CALL ldv_error() [L3371] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 62.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 32.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2052 SDtfs, 5384 SDslu, 2868 SDs, 0 SdLazy, 6757 SolverSat, 2545 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 347 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1031occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 1195 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 28.1s InterpolantComputationTime, 798 NumberOfCodeBlocks, 798 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 336157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 48/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...