/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 21:49:27,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 21:49:27,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 21:49:27,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 21:49:27,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 21:49:27,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 21:49:27,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 21:49:27,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 21:49:27,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 21:49:27,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 21:49:27,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 21:49:27,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 21:49:27,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 21:49:27,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 21:49:27,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 21:49:27,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 21:49:27,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 21:49:27,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 21:49:27,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 21:49:27,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 21:49:27,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 21:49:27,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 21:49:27,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 21:49:28,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 21:49:28,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 21:49:28,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 21:49:28,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 21:49:28,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 21:49:28,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 21:49:28,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 21:49:28,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 21:49:28,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 21:49:28,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 21:49:28,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 21:49:28,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 21:49:28,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 21:49:28,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 21:49:28,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 21:49:28,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 21:49:28,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 21:49:28,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 21:49:28,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-29 21:49:28,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 21:49:28,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 21:49:28,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 21:49:28,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 21:49:28,106 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 21:49:28,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 21:49:28,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 21:49:28,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 21:49:28,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 21:49:28,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 21:49:28,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 21:49:28,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 21:49:28,109 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 21:49:28,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 21:49:28,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 21:49:28,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 21:49:28,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 21:49:28,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 21:49:28,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 21:49:28,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 21:49:28,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 21:49:28,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 21:49:28,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 21:49:28,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 21:49:28,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 21:49:28,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 21:49:28,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-29 21:49:28,112 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 21:49:28,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 21:49:28,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 21:49:28,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 21:49:28,583 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 21:49:28,583 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 21:49:28,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-29 21:49:28,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7f3bc50d/f9ca78dde72f4e16bc747f2e6b52fbbe/FLAG5c912d6c2 [2020-10-29 21:49:29,578 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 21:49:29,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-29 21:49:29,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7f3bc50d/f9ca78dde72f4e16bc747f2e6b52fbbe/FLAG5c912d6c2 [2020-10-29 21:49:30,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7f3bc50d/f9ca78dde72f4e16bc747f2e6b52fbbe [2020-10-29 21:49:30,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 21:49:30,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 21:49:30,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 21:49:30,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 21:49:30,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 21:49:30,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:49:30" (1/1) ... [2020-10-29 21:49:30,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c1e6964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:30, skipping insertion in model container [2020-10-29 21:49:30,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:49:30" (1/1) ... [2020-10-29 21:49:30,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 21:49:30,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 21:49:31,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 21:49:31,259 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 21:49:31,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 21:49:31,712 INFO L208 MainTranslator]: Completed translation [2020-10-29 21:49:31,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31 WrapperNode [2020-10-29 21:49:31,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 21:49:31,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 21:49:31,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 21:49:31,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 21:49:31,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... [2020-10-29 21:49:31,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... [2020-10-29 21:49:31,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... [2020-10-29 21:49:31,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... [2020-10-29 21:49:31,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... [2020-10-29 21:49:31,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... [2020-10-29 21:49:31,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... [2020-10-29 21:49:31,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 21:49:31,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 21:49:31,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 21:49:31,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 21:49:31,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 21:49:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 21:49:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 21:49:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 21:49:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 21:49:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-29 21:49:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-29 21:49:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-29 21:49:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-29 21:49:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-29 21:49:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-29 21:49:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2020-10-29 21:49:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-29 21:49:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-29 21:49:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-29 21:49:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-29 21:49:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-29 21:49:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_1 [2020-10-29 21:49:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-29 21:49:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-29 21:49:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-29 21:49:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-29 21:49:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-29 21:49:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-29 21:49:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2020-10-29 21:49:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2020-10-29 21:49:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2020-10-29 21:49:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure qc_release [2020-10-29 21:49:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2020-10-29 21:49:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2020-10-29 21:49:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-29 21:49:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-29 21:49:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 21:49:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-29 21:49:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2020-10-29 21:49:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_3 [2020-10-29 21:49:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_4 [2020-10-29 21:49:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_5 [2020-10-29 21:49:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_6 [2020-10-29 21:49:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_7 [2020-10-29 21:49:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_8 [2020-10-29 21:49:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_9 [2020-10-29 21:49:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_10 [2020-10-29 21:49:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_11 [2020-10-29 21:49:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_12 [2020-10-29 21:49:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-10-29 21:49:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc [2020-10-29 21:49:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2020-10-29 21:49:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-29 21:49:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-29 21:49:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-29 21:49:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-29 21:49:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2020-10-29 21:49:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-29 21:49:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-29 21:49:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2020-10-29 21:49:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-29 21:49:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-29 21:49:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-10-29 21:49:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-10-29 21:49:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-29 21:49:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2020-10-29 21:49:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2020-10-29 21:49:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-29 21:49:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2020-10-29 21:49:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2020-10-29 21:49:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2020-10-29 21:49:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2020-10-29 21:49:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2020-10-29 21:49:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2020-10-29 21:49:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2020-10-29 21:49:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2020-10-29 21:49:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2020-10-29 21:49:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2020-10-29 21:49:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-29 21:49:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-29 21:49:32,061 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-29 21:49:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 21:49:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 21:49:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 21:49:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 21:49:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 21:49:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 21:49:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-29 21:49:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-29 21:49:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 21:49:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 21:49:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-29 21:49:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 21:49:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-29 21:49:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 21:49:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-29 21:49:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 21:49:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-29 21:49:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-29 21:49:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-29 21:49:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-29 21:49:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-29 21:49:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-29 21:49:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2020-10-29 21:49:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-29 21:49:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc [2020-10-29 21:49:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2020-10-29 21:49:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-29 21:49:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-29 21:49:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-29 21:49:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_4 [2020-10-29 21:49:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_6 [2020-10-29 21:49:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_8 [2020-10-29 21:49:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_10 [2020-10-29 21:49:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_11 [2020-10-29 21:49:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_12 [2020-10-29 21:49:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-29 21:49:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-29 21:49:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_1 [2020-10-29 21:49:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-29 21:49:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-29 21:49:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-29 21:49:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-29 21:49:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-29 21:49:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 21:49:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-29 21:49:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-29 21:49:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-29 21:49:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-29 21:49:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2020-10-29 21:49:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-29 21:49:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2020-10-29 21:49:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-29 21:49:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-29 21:49:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-10-29 21:49:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-29 21:49:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_3 [2020-10-29 21:49:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_5 [2020-10-29 21:49:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_7 [2020-10-29 21:49:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_9 [2020-10-29 21:49:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2020-10-29 21:49:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 21:49:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2020-10-29 21:49:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 21:49:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-29 21:49:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-29 21:49:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-29 21:49:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-29 21:49:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2020-10-29 21:49:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2020-10-29 21:49:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2020-10-29 21:49:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2020-10-29 21:49:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2020-10-29 21:49:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2020-10-29 21:49:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2020-10-29 21:49:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2020-10-29 21:49:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2020-10-29 21:49:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2020-10-29 21:49:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2020-10-29 21:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2020-10-29 21:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2020-10-29 21:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 21:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure qc_release [2020-10-29 21:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2020-10-29 21:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2020-10-29 21:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2020-10-29 21:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-29 21:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-29 21:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 21:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-29 21:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 21:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 21:49:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 21:49:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 21:49:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 21:49:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 21:49:33,574 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-29 21:49:35,227 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 21:49:35,228 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 21:49:35,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:49:35 BoogieIcfgContainer [2020-10-29 21:49:35,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 21:49:35,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 21:49:35,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 21:49:35,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 21:49:35,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:49:30" (1/3) ... [2020-10-29 21:49:35,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da39f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:49:35, skipping insertion in model container [2020-10-29 21:49:35,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:49:31" (2/3) ... [2020-10-29 21:49:35,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da39f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:49:35, skipping insertion in model container [2020-10-29 21:49:35,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:49:35" (3/3) ... [2020-10-29 21:49:35,242 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-29 21:49:35,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 21:49:35,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 21:49:35,275 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 21:49:35,308 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 21:49:35,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 21:49:35,309 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 21:49:35,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 21:49:35,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 21:49:35,309 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 21:49:35,309 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 21:49:35,310 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 21:49:35,343 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states. [2020-10-29 21:49:35,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-29 21:49:35,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:49:35,365 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 21:49:35,366 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:49:35,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:49:35,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1370048386, now seen corresponding path program 1 times [2020-10-29 21:49:35,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:49:35,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789941013] [2020-10-29 21:49:35,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:49:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:36,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:41,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:41,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 21:49:41,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:49:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-29 21:49:41,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:41,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 21:49:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 21:49:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 21:49:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 21:49:42,357 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:49:42,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:49:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:49:42,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-29 21:49:42,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:49:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:49:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:49:42,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:49:42,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:49:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:49:42,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:49:42,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:49:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:49:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:49:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:49:42,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:49:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:49:42,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:49:42,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:49:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:49:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:49:42,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:49:42,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:49:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:49:42,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:49:42,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:49:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:49:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:49:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:49:42,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:49:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:49:42,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:49:42,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:49:42,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:49:42,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:49:42,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:49:42,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:49:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:49:42,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:49:42,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 21:49:42,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 21:49:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:49:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:49:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:49:42,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 21:49:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:49:42,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 21:49:42,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 21:49:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:49:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:49:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:49:42,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 21:49:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:49:42,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 21:49:42,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:49:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 21:49:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:49:42,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:49:42,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:49:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:42,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:42,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:42,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:49:42,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:49:42,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:49:42,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:42,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:42,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:49:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:49:42,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:49:42,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 21:49:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-29 21:49:42,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789941013] [2020-10-29 21:49:42,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:49:42,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 21:49:42,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815099773] [2020-10-29 21:49:43,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 21:49:43,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:49:43,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 21:49:43,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 21:49:43,025 INFO L87 Difference]: Start difference. First operand 554 states. Second operand 8 states. [2020-10-29 21:49:43,943 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:49:45,742 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2020-10-29 21:49:46,756 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2020-10-29 21:49:54,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:49:54,261 INFO L93 Difference]: Finished difference Result 1152 states and 1531 transitions. [2020-10-29 21:49:54,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 21:49:54,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-29 21:49:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:49:54,292 INFO L225 Difference]: With dead ends: 1152 [2020-10-29 21:49:54,292 INFO L226 Difference]: Without dead ends: 592 [2020-10-29 21:49:54,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-29 21:49:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-10-29 21:49:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 536. [2020-10-29 21:49:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-10-29 21:49:54,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 693 transitions. [2020-10-29 21:49:54,505 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 693 transitions. Word has length 64 [2020-10-29 21:49:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:49:54,506 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 693 transitions. [2020-10-29 21:49:54,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 21:49:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 693 transitions. [2020-10-29 21:49:54,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 21:49:54,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:49:54,513 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 21:49:54,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 21:49:54,514 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:49:54,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:49:54,514 INFO L82 PathProgramCache]: Analyzing trace with hash 891743970, now seen corresponding path program 1 times [2020-10-29 21:49:54,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:49:54,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546079615] [2020-10-29 21:49:54,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:49:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:49:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:55,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:55,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:49:59,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:49:59,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 21:49:59,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 21:49:59,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5139 [2020-10-29 21:49:59,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:49:59,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:49:59,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 21:49:59,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:49:59,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 21:49:59,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 21:50:00,867 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:50:00,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:50:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:01,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-29 21:50:01,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 21:50:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:01,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:50:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:01,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:01,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 21:50:01,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:50:01,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:50:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:01,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 21:50:01,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:50:01,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:50:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:01,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 21:50:01,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:50:01,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:50:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:50:01,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:01,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:50:01,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 21:50:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:50:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 21:50:01,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:50:01,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 21:50:01,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 21:50:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 21:50:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 21:50:01,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:50:01,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 21:50:01,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 21:50:01,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 21:50:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:50:01,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:01,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 21:50:01,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 21:50:01,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:50:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:01,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:01,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:01,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:01,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:50:01,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:01,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:01,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-29 21:50:01,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546079615] [2020-10-29 21:50:01,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:50:01,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 21:50:01,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360518197] [2020-10-29 21:50:01,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 21:50:01,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:50:01,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 21:50:01,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 21:50:01,887 INFO L87 Difference]: Start difference. First operand 536 states and 693 transitions. Second operand 7 states. [2020-10-29 21:50:02,737 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:50:03,893 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-29 21:50:04,857 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-29 21:50:17,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:50:17,097 INFO L93 Difference]: Finished difference Result 1130 states and 1483 transitions. [2020-10-29 21:50:17,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 21:50:17,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2020-10-29 21:50:17,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:50:17,107 INFO L225 Difference]: With dead ends: 1130 [2020-10-29 21:50:17,107 INFO L226 Difference]: Without dead ends: 1109 [2020-10-29 21:50:17,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-29 21:50:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-10-29 21:50:17,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 993. [2020-10-29 21:50:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-10-29 21:50:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1294 transitions. [2020-10-29 21:50:17,341 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1294 transitions. Word has length 66 [2020-10-29 21:50:17,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:50:17,342 INFO L481 AbstractCegarLoop]: Abstraction has 993 states and 1294 transitions. [2020-10-29 21:50:17,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 21:50:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1294 transitions. [2020-10-29 21:50:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 21:50:17,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:50:17,350 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 21:50:17,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 21:50:17,351 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:50:17,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:50:17,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1363457072, now seen corresponding path program 1 times [2020-10-29 21:50:17,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:50:17,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649828348] [2020-10-29 21:50:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:50:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:18,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:18,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:22,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:22,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-29 21:50:22,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 21:50:22,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5142 [2020-10-29 21:50:22,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:22,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:22,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:50:22,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 21:50:22,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:23,513 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:50:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:50:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:24,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-29 21:50:24,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 21:50:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:50:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:24,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:50:24,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:50:24,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:50:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:24,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 21:50:24,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:50:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:50:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:24,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:50:24,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 21:50:24,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:50:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:50:24,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:50:24,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 21:50:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:50:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 21:50:24,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:50:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 21:50:24,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 21:50:24,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 21:50:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 21:50:24,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:50:24,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 21:50:24,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 21:50:24,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 21:50:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 21:50:24,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 21:50:24,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 21:50:24,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 21:50:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:50:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:24,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:50:24,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:24,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:50:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:24,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:50:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 21:50:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:24,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:50:24,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:50:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 21:50:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:50:24,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:50:24,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 21:50:24,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:50:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:24,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:50:24,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:24,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 21:50:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:24,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:50:24,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:24,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:24,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 21:50:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:24,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 21:50:24,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:24,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:24,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:50:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:24,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:24,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:24,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:24,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:24,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:50:24,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:24,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:24,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:24,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:24,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:24,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-29 21:50:24,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649828348] [2020-10-29 21:50:24,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:50:24,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 21:50:24,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832975049] [2020-10-29 21:50:24,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 21:50:24,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:50:24,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 21:50:24,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-29 21:50:24,854 INFO L87 Difference]: Start difference. First operand 993 states and 1294 transitions. Second operand 12 states. [2020-10-29 21:50:25,666 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:50:26,960 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-29 21:50:28,042 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-29 21:50:34,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:50:34,454 INFO L93 Difference]: Finished difference Result 2111 states and 2782 transitions. [2020-10-29 21:50:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 21:50:34,455 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2020-10-29 21:50:34,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:50:34,471 INFO L225 Difference]: With dead ends: 2111 [2020-10-29 21:50:34,471 INFO L226 Difference]: Without dead ends: 1142 [2020-10-29 21:50:34,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-29 21:50:34,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-29 21:50:34,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1033. [2020-10-29 21:50:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1033 states. [2020-10-29 21:50:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1346 transitions. [2020-10-29 21:50:34,735 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1346 transitions. Word has length 109 [2020-10-29 21:50:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:50:34,736 INFO L481 AbstractCegarLoop]: Abstraction has 1033 states and 1346 transitions. [2020-10-29 21:50:34,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 21:50:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1346 transitions. [2020-10-29 21:50:34,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 21:50:34,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:50:34,741 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 21:50:34,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 21:50:34,742 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:50:34,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:50:34,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1347938354, now seen corresponding path program 1 times [2020-10-29 21:50:34,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:50:34,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754649357] [2020-10-29 21:50:34,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:50:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:34,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:35,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:35,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:38,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:40,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:40,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-29 21:50:40,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 21:50:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5259 [2020-10-29 21:50:40,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:40,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:50:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-29 21:50:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 21:50:40,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,119 WARN L193 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:50:41,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:50:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:41,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-29 21:50:41,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:50:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:41,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 21:50:41,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:50:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:41,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:50:41,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:50:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:50:41,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:50:41,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:50:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:50:41,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:50:41,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:50:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 21:50:41,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:50:41,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 21:50:41,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 21:50:41,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:50:41,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 21:50:41,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 21:50:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 21:50:41,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:50:41,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 21:50:41,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 21:50:41,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:50:41,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 21:50:41,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 21:50:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 21:50:41,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 21:50:41,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-29 21:50:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:50:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:41,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:50:41,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:50:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:41,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:50:41,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 21:50:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:41,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:50:41,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 21:50:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:50:41,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:50:41,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:50:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:41,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:50:41,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:50:41,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 21:50:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:41,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:50:41,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 21:50:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:50:41,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 21:50:41,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 21:50:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:50:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:41,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:41,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:50:41,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:50:41,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:50:41,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:50:41,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:50:41,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:50:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:50:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:50:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:50:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:50:41,951 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-29 21:50:41,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754649357] [2020-10-29 21:50:41,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 21:50:41,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 21:50:41,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060344377] [2020-10-29 21:50:41,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 21:50:41,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:50:41,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 21:50:41,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-29 21:50:41,960 INFO L87 Difference]: Start difference. First operand 1033 states and 1346 transitions. Second operand 14 states. [2020-10-29 21:50:42,826 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:50:44,238 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-29 21:50:45,211 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-29 21:50:46,365 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2020-10-29 21:50:47,266 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-29 21:50:48,140 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2020-10-29 21:50:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:50:56,538 INFO L93 Difference]: Finished difference Result 2535 states and 3341 transitions. [2020-10-29 21:50:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 21:50:56,539 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 109 [2020-10-29 21:50:56,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:50:56,549 INFO L225 Difference]: With dead ends: 2535 [2020-10-29 21:50:56,550 INFO L226 Difference]: Without dead ends: 1516 [2020-10-29 21:50:56,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2020-10-29 21:50:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-10-29 21:50:56,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1361. [2020-10-29 21:50:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2020-10-29 21:50:56,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1757 transitions. [2020-10-29 21:50:56,823 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1757 transitions. Word has length 109 [2020-10-29 21:50:56,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:50:56,823 INFO L481 AbstractCegarLoop]: Abstraction has 1361 states and 1757 transitions. [2020-10-29 21:50:56,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 21:50:56,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1757 transitions. [2020-10-29 21:50:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-29 21:50:56,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:50:56,828 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 21:50:56,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 21:50:56,829 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:50:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:50:56,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1255284301, now seen corresponding path program 1 times [2020-10-29 21:50:56,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:50:56,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822855780] [2020-10-29 21:50:56,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:50:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:50:56,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:57,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:57,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:57,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:50:58,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:01,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 21:51:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 21:51:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,001 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:51:03,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:51:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-29 21:51:03,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:51:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:03,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:51:03,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:51:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:03,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 21:51:03,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:51:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:03,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:51:03,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:51:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:51:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:03,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:51:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 21:51:03,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:51:03,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 21:51:03,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 21:51:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:51:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 21:51:03,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 21:51:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 21:51:03,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:51:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 21:51:03,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 21:51:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:51:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 21:51:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 21:51:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:51:03,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:51:03,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:03,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 21:51:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 21:51:03,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 21:51:03,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:51:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 21:51:03,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:03,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:03,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:51:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:03,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:03,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 21:51:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:03,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:03,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 21:51:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 21:51:03,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 21:51:03,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:51:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 21:51:03,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:03,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:51:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:03,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 21:51:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:03,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 21:51:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:51:03,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:51:03,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:03,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 21:51:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:03,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 21:51:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:51:03,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:51:03,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 21:51:03,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:03,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:03,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:03,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:03,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:03,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 21:51:03,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:03,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:03,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:04,047 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-29 21:51:04,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822855780] [2020-10-29 21:51:04,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 21:51:04,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 21:51:04,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182945554] [2020-10-29 21:51:04,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 21:51:04,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:51:04,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 21:51:04,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-29 21:51:04,050 INFO L87 Difference]: Start difference. First operand 1361 states and 1757 transitions. Second operand 16 states. [2020-10-29 21:51:04,830 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:51:06,723 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2020-10-29 21:51:07,567 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-29 21:51:08,432 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-29 21:51:09,286 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-29 21:51:10,711 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-29 21:51:11,802 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-29 21:51:18,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:51:18,945 INFO L93 Difference]: Finished difference Result 2742 states and 3576 transitions. [2020-10-29 21:51:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 21:51:18,946 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 153 [2020-10-29 21:51:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:51:18,953 INFO L225 Difference]: With dead ends: 2742 [2020-10-29 21:51:18,954 INFO L226 Difference]: Without dead ends: 1294 [2020-10-29 21:51:18,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=202, Invalid=728, Unknown=0, NotChecked=0, Total=930 [2020-10-29 21:51:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2020-10-29 21:51:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1193. [2020-10-29 21:51:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2020-10-29 21:51:19,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1562 transitions. [2020-10-29 21:51:19,141 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1562 transitions. Word has length 153 [2020-10-29 21:51:19,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:51:19,142 INFO L481 AbstractCegarLoop]: Abstraction has 1193 states and 1562 transitions. [2020-10-29 21:51:19,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 21:51:19,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1562 transitions. [2020-10-29 21:51:19,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-29 21:51:19,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:51:19,147 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2020-10-29 21:51:19,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 21:51:19,147 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:51:19,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:51:19,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1968388538, now seen corresponding path program 1 times [2020-10-29 21:51:19,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:51:19,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812556343] [2020-10-29 21:51:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:51:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:19,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:19,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:19,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:19,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:24,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 21:51:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,236 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:51:25,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:51:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:25,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 21:51:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:51:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:25,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:25,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:51:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:25,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:25,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:51:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:25,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:25,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:51:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:51:25,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:25,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:51:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 21:51:25,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:51:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 21:51:25,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 21:51:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:51:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 21:51:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 21:51:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 21:51:25,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:51:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 21:51:25,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 21:51:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 21:51:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 21:51:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 21:51:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:51:25,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:51:25,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:51:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 21:51:25,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:25,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:25,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 21:51:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 21:51:25,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 21:51:25,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:51:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 21:51:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:25,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:51:25,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 62 [2020-10-29 21:51:25,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:51:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:25,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:25,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 21:51:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:51:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 21:51:25,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:25,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 21:51:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:25,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:25,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:25,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 21:51:25,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:25,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 21:51:25,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:25,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:25,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:51:25,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:25,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 21:51:25,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:26,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:26,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:51:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:26,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:26,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 21:51:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:26,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:26,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 21:51:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:51:26,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:26,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:26,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:26,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 21:51:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:26,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:26,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-29 21:51:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 21:51:26,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:51:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 21:51:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:51:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:51:26,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:51:26,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:51:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:26,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:26,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 21:51:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:26,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:26,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:51:26,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:51:26,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:51:26,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:51:26,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:51:26,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:51:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:51:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:51:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:51:26,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:51:26,230 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-29 21:51:26,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812556343] [2020-10-29 21:51:26,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 21:51:26,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 21:51:26,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497782683] [2020-10-29 21:51:26,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 21:51:26,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:51:26,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 21:51:26,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2020-10-29 21:51:26,233 INFO L87 Difference]: Start difference. First operand 1193 states and 1562 transitions. Second operand 19 states. [2020-10-29 21:51:27,083 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:51:28,604 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-29 21:51:29,590 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-29 21:51:30,825 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2020-10-29 21:51:31,694 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-29 21:51:32,557 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-29 21:51:33,414 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-29 21:51:34,311 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2020-10-29 21:51:35,743 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2020-10-29 21:51:38,426 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2020-10-29 21:51:58,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:51:58,138 INFO L93 Difference]: Finished difference Result 4900 states and 6430 transitions. [2020-10-29 21:51:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-29 21:51:58,139 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 159 [2020-10-29 21:51:58,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:51:58,159 INFO L225 Difference]: With dead ends: 4900 [2020-10-29 21:51:58,159 INFO L226 Difference]: Without dead ends: 3721 [2020-10-29 21:51:58,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2020-10-29 21:51:58,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3721 states. [2020-10-29 21:51:58,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3721 to 3451. [2020-10-29 21:51:58,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3451 states. [2020-10-29 21:51:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 4544 transitions. [2020-10-29 21:51:58,737 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 4544 transitions. Word has length 159 [2020-10-29 21:51:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:51:58,738 INFO L481 AbstractCegarLoop]: Abstraction has 3451 states and 4544 transitions. [2020-10-29 21:51:58,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 21:51:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 4544 transitions. [2020-10-29 21:51:58,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-29 21:51:58,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:51:58,752 INFO L422 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 21:51:58,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 21:51:58,753 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:51:58,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:51:58,753 INFO L82 PathProgramCache]: Analyzing trace with hash 337892719, now seen corresponding path program 1 times [2020-10-29 21:51:58,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:51:58,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668647433] [2020-10-29 21:51:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:51:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:51:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:59,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:51:59,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:00,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:04,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:04,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 21:52:04,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 21:52:04,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-29 21:52:04,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:04,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:04,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 21:52:04,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-29 21:52:04,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 21:52:04,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:04,918 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:52:04,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:52:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:04,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:05,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-29 21:52:05,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:52:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:05,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:05,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:52:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:05,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:05,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:52:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:05,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:05,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:52:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:52:05,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:05,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:52:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 21:52:05,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:52:05,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 21:52:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 21:52:05,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 21:52:05,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 21:52:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:52:05,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:05,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:05,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 21:52:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 21:52:05,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 21:52:05,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:05,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:52:05,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:52:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:05,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:05,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 21:52:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:05,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:05,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:05,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:05,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 21:52:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:05,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:06,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:06,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 21:52:06,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:52:06,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1129 [2020-10-29 21:52:06,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:06,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:06,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 21:52:06,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 21:52:06,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 21:52:06,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:52:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:06,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 21:52:07,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:52:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-29 21:52:07,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 21:52:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 21:52:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:07,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 21:52:07,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:52:07,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:07,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 21:52:07,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:07,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:07,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:52:07,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:07,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:07,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:07,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:07,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 21:52:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:07,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:07,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:52:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:52:07,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:07,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 21:52:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 21:52:07,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:52:07,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 21:52:07,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:07,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:52:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:52:07,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:52:07,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:07,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:07,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:07,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:07,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 21:52:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:07,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:07,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:07,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:07,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:07,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:07,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-29 21:52:07,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668647433] [2020-10-29 21:52:07,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:52:07,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 21:52:07,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70186070] [2020-10-29 21:52:07,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 21:52:07,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:52:07,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 21:52:07,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-29 21:52:07,404 INFO L87 Difference]: Start difference. First operand 3451 states and 4544 transitions. Second operand 16 states. [2020-10-29 21:52:08,163 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:52:14,165 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2020-10-29 21:52:20,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:52:20,100 INFO L93 Difference]: Finished difference Result 5471 states and 7219 transitions. [2020-10-29 21:52:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 21:52:20,101 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 168 [2020-10-29 21:52:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:52:20,121 INFO L225 Difference]: With dead ends: 5471 [2020-10-29 21:52:20,121 INFO L226 Difference]: Without dead ends: 3704 [2020-10-29 21:52:20,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 21:52:20,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2020-10-29 21:52:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3451. [2020-10-29 21:52:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3451 states. [2020-10-29 21:52:20,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 4541 transitions. [2020-10-29 21:52:20,688 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 4541 transitions. Word has length 168 [2020-10-29 21:52:20,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:52:20,688 INFO L481 AbstractCegarLoop]: Abstraction has 3451 states and 4541 transitions. [2020-10-29 21:52:20,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 21:52:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 4541 transitions. [2020-10-29 21:52:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-29 21:52:20,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:52:20,699 INFO L422 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 21:52:20,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 21:52:20,700 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:52:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:52:20,700 INFO L82 PathProgramCache]: Analyzing trace with hash -94890385, now seen corresponding path program 1 times [2020-10-29 21:52:20,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:52:20,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842545355] [2020-10-29 21:52:20,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:52:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:20,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:21,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:21,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:22,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:25,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:25,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:25,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-29 21:52:25,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 21:52:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 21:52:25,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:25,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:52:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-29 21:52:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 21:52:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:26,766 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:52:26,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:52:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:26,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:26,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:26,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:26,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 21:52:26,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:26,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:26,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:26,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:52:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:26,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:26,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:26,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:26,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:26,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:26,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:26,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:26,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:26,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:52:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:26,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:27,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:52:27,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:52:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:27,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:27,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:52:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:52:27,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:27,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:52:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 21:52:27,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 21:52:27,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 21:52:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 21:52:27,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:52:27,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 21:52:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:27,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 21:52:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:52:27,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:27,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:27,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 21:52:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 21:52:27,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 21:52:27,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:52:27,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 21:52:27,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:27,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:27,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:52:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:27,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:27,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 21:52:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:27,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:52:27,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:27,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 21:52:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 21:52:27,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 21:52:27,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-29 21:52:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:27,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:52:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:27,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:27,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 21:52:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:52:27,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 21:52:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:52:27,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:27,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:27,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 21:52:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:27,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 21:52:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 21:52:27,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:52:27,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 21:52:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:52:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:52:27,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:27,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:27,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 21:52:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:27,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:27,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:27,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:27,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:27,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:27,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:27,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-29 21:52:27,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842545355] [2020-10-29 21:52:27,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:52:27,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 21:52:27,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060383023] [2020-10-29 21:52:27,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 21:52:27,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:52:27,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 21:52:27,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-29 21:52:27,612 INFO L87 Difference]: Start difference. First operand 3451 states and 4541 transitions. Second operand 13 states. [2020-10-29 21:52:28,539 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-29 21:52:29,820 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-29 21:52:30,757 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-29 21:52:38,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:52:38,250 INFO L93 Difference]: Finished difference Result 7277 states and 9734 transitions. [2020-10-29 21:52:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 21:52:38,251 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 174 [2020-10-29 21:52:38,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:52:38,274 INFO L225 Difference]: With dead ends: 7277 [2020-10-29 21:52:38,274 INFO L226 Difference]: Without dead ends: 4380 [2020-10-29 21:52:38,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-10-29 21:52:38,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2020-10-29 21:52:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4037. [2020-10-29 21:52:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4037 states. [2020-10-29 21:52:38,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 5319 transitions. [2020-10-29 21:52:38,896 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 5319 transitions. Word has length 174 [2020-10-29 21:52:38,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:52:38,897 INFO L481 AbstractCegarLoop]: Abstraction has 4037 states and 5319 transitions. [2020-10-29 21:52:38,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 21:52:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 5319 transitions. [2020-10-29 21:52:38,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-29 21:52:38,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:52:38,910 INFO L422 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 21:52:38,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 21:52:38,910 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:52:38,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:52:38,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1333849596, now seen corresponding path program 1 times [2020-10-29 21:52:38,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:52:38,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724296407] [2020-10-29 21:52:38,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:52:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:39,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:39,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:44,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:44,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-29 21:52:44,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 21:52:44,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5364 [2020-10-29 21:52:44,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:44,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 21:52:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-29 21:52:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 21:52:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,260 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-29 21:52:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:52:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:52:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:45,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:45,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 21:52:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:45,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:45,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 21:52:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:45,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:45,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 21:52:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:52:45,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 21:52:45,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 21:52:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 21:52:45,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:45,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 21:52:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 21:52:45,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 21:52:45,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 21:52:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:52:45,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:45,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:45,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 21:52:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 21:52:45,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:52:45,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:45,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:45,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 21:52:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:45,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:45,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 21:52:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:45,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:45,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:52:45,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:45,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:45,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 21:52:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:45,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:45,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:46,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:46,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 21:52:46,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:52:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-29 21:52:46,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:46,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 21:52:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-29 21:52:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 21:52:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:46,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:52:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:46,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:46,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:46,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:46,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 21:52:46,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:52:46,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-29 21:52:46,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:46,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:46,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 21:52:46,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:46,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 21:52:46,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:46,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:46,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:46,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:46,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 21:52:46,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 21:52:46,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:46,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 21:52:46,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:46,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 21:52:46,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:46,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:46,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 21:52:47,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 21:52:47,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 21:52:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 21:52:47,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 21:52:47,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 21:52:47,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 21:52:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 21:52:47,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:52:47,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:52:47,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 21:52:47,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:47,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:52:47,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:47,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 21:52:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:47,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:52:47,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:52:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:52:47,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:47,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 21:52:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:47,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:52:47,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:52:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:52:47,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 21:52:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:47,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:47,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:52:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:47,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 21:52:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:47,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:47,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:47,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:52:47,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:47,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-29 21:52:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 21:52:47,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:52:47,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 21:52:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:47,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:52:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:52:47,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:52:47,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:47,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:47,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:52:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:47,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:47,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:47,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 21:52:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:52:47,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:52:47,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:52:47,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:52:47,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:52:47,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:52:47,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:52:47,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:52:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:52:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:52:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:52:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:52:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-29 21:52:47,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724296407] [2020-10-29 21:52:47,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:52:47,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-10-29 21:52:47,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711886245] [2020-10-29 21:52:47,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 21:52:47,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:52:47,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 21:52:47,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2020-10-29 21:52:47,660 INFO L87 Difference]: Start difference. First operand 4037 states and 5319 transitions. Second operand 24 states. [2020-10-29 21:52:48,493 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 334