/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=SHALLOWEST --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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 12:20:06,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 12:20:06,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 12:20:06,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 12:20:06,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 12:20:06,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 12:20:06,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 12:20:06,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 12:20:06,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 12:20:06,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 12:20:06,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 12:20:06,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 12:20:06,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 12:20:06,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 12:20:06,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 12:20:06,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 12:20:06,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 12:20:06,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 12:20:06,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 12:20:06,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 12:20:06,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 12:20:06,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 12:20:06,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 12:20:06,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 12:20:06,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 12:20:06,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 12:20:06,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 12:20:06,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 12:20:06,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 12:20:06,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 12:20:06,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 12:20:06,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 12:20:06,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 12:20:06,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 12:20:06,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 12:20:06,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 12:20:06,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 12:20:06,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 12:20:06,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 12:20:06,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 12:20:06,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 12:20:06,764 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 [2020-10-27 12:20:06,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 12:20:06,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 12:20:06,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 12:20:06,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 12:20:06,801 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 12:20:06,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 12:20:06,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 12:20:06,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 12:20:06,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 12:20:06,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 12:20:06,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 12:20:06,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 12:20:06,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 12:20:06,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 12:20:06,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 12:20:06,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 12:20:06,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 12:20:06,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 12:20:06,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 12:20:06,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 12:20:06,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 12:20:06,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 12:20:06,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 12:20:06,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 12:20:06,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 12:20:06,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 12:20:06,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 12:20:06,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 12:20:07,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 12:20:07,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 12:20:07,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 12:20:07,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 12:20:07,300 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 12:20:07,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i [2020-10-27 12:20:07,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7304f599/0707e8b1c21244e3ba6131975526223a/FLAG11d1db87d [2020-10-27 12:20:08,394 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 12:20:08,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i [2020-10-27 12:20:08,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7304f599/0707e8b1c21244e3ba6131975526223a/FLAG11d1db87d [2020-10-27 12:20:08,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7304f599/0707e8b1c21244e3ba6131975526223a [2020-10-27 12:20:08,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 12:20:08,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 12:20:08,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 12:20:08,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 12:20:08,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 12:20:08,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:20:08" (1/1) ... [2020-10-27 12:20:08,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609bc598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:08, skipping insertion in model container [2020-10-27 12:20:08,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:20:08" (1/1) ... [2020-10-27 12:20:08,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 12:20:09,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 12:20:10,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 12:20:10,103 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 12:20:10,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 12:20:10,356 INFO L208 MainTranslator]: Completed translation [2020-10-27 12:20:10,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10 WrapperNode [2020-10-27 12:20:10,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 12:20:10,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 12:20:10,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 12:20:10,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 12:20:10,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (1/1) ... [2020-10-27 12:20:10,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (1/1) ... [2020-10-27 12:20:10,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (1/1) ... [2020-10-27 12:20:10,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (1/1) ... [2020-10-27 12:20:10,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (1/1) ... [2020-10-27 12:20:10,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (1/1) ... [2020-10-27 12:20:10,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (1/1) ... [2020-10-27 12:20:10,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 12:20:10,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 12:20:10,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 12:20:10,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 12:20:10,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (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 [2020-10-27 12:20:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 12:20:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 12:20:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-27 12:20:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-27 12:20:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 12:20:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 12:20:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 12:20:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 12:20:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-27 12:20:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-27 12:20:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 12:20:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 12:20:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 12:20:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2020-10-27 12:20:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2020-10-27 12:20:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2020-10-27 12:20:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2020-10-27 12:20:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2020-10-27 12:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2020-10-27 12:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2020-10-27 12:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2020-10-27 12:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2020-10-27 12:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 12:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2020-10-27 12:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2020-10-27 12:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 12:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 12:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-27 12:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-27 12:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-27 12:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-10-27 12:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-10-27 12:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-10-27 12:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-10-27 12:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-10-27 12:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 12:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2020-10-27 12:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2020-10-27 12:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 12:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2020-10-27 12:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2020-10-27 12:20:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2020-10-27 12:20:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2020-10-27 12:20:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2020-10-27 12:20:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2020-10-27 12:20:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 12:20:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 12:20:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 12:20:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 12:20:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 12:20:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 12:20:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 12:20:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 12:20:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 12:20:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2020-10-27 12:20:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 12:20:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2020-10-27 12:20:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2020-10-27 12:20:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2020-10-27 12:20:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-10-27 12:20:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-10-27 12:20:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 12:20:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 12:20:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 12:20:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 12:20:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 12:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 12:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 12:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 12:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 12:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-27 12:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-27 12:20:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 12:20:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 12:20:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 12:20:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 12:20:10,613 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2020-10-27 12:20:10,613 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2020-10-27 12:20:10,613 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2020-10-27 12:20:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2020-10-27 12:20:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2020-10-27 12:20:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2020-10-27 12:20:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2020-10-27 12:20:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2020-10-27 12:20:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2020-10-27 12:20:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2020-10-27 12:20:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2020-10-27 12:20:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2020-10-27 12:20:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 12:20:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 12:20:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 12:20:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 12:20:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-27 12:20:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2020-10-27 12:20:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-27 12:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2020-10-27 12:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2020-10-27 12:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 12:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 12:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 12:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 12:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 12:20:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 12:20:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-27 12:20:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-27 12:20:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-27 12:20:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-10-27 12:20:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-10-27 12:20:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-10-27 12:20:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 12:20:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 12:20:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 12:20:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 12:20:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 12:20:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 12:20:11,716 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 12:20:11,740 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-10-27 12:20:12,256 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 12:20:12,256 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 12:20:12,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:20:12 BoogieIcfgContainer [2020-10-27 12:20:12,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 12:20:12,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 12:20:12,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 12:20:12,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 12:20:12,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:20:08" (1/3) ... [2020-10-27 12:20:12,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e71510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:20:12, skipping insertion in model container [2020-10-27 12:20:12,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:20:10" (2/3) ... [2020-10-27 12:20:12,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e71510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:20:12, skipping insertion in model container [2020-10-27 12:20:12,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:20:12" (3/3) ... [2020-10-27 12:20:12,269 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i [2020-10-27 12:20:12,282 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 12:20:12,289 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 12:20:12,303 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 12:20:12,333 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 12:20:12,334 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 12:20:12,334 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 12:20:12,334 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 12:20:12,334 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 12:20:12,334 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 12:20:12,334 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 12:20:12,335 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 12:20:12,357 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-27 12:20:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 12:20:12,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:20:12,369 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:20:12,370 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:20:12,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:20:12,377 INFO L82 PathProgramCache]: Analyzing trace with hash -333583619, now seen corresponding path program 1 times [2020-10-27 12:20:12,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:20:12,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194956305] [2020-10-27 12:20:12,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:20:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:13,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:13,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:17,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:17,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 12:20:17,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 12:20:17,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-27 12:20:17,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 12:20:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 12:20:17,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 12:20:17,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 12:20:18,207 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 12:20:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:18,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 12:20:18,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:18,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 12:20:18,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:18,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 12:20:18,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:18,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 12:20:18,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 12:20:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:18,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 12:20:18,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:18,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 12:20:18,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:18,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 12:20:18,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 12:20:18,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 12:20:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:20:18,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 12:20:18,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:18,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 12:20:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 12:20:18,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 12:20:18,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 12:20:18,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:18,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 12:20:18,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:18,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 12:20:18,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 12:20:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 12:20:18,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:18,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 12:20:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:18,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:18,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 12:20:18,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 12:20:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 12:20:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 12:20:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 12:20:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:19,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:19,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:19,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:19,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 12:20:19,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 12:20:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 12:20:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:19,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 12:20:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:19,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:19,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:19,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:20:19,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:19,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 12:20:19,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 12:20:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:19,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:19,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:19,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:19,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:19,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:19,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:19,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 12:20:19,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:19,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 12:20:19,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194956305] [2020-10-27 12:20:19,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 12:20:19,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 12:20:19,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977473491] [2020-10-27 12:20:19,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 12:20:19,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:20:19,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 12:20:19,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 12:20:19,181 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 10 states. [2020-10-27 12:20:19,436 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-27 12:20:20,127 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-27 12:20:20,402 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 12:20:20,657 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-27 12:20:20,955 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 12:20:21,229 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-27 12:20:22,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:20:22,522 INFO L93 Difference]: Finished difference Result 306 states and 382 transitions. [2020-10-27 12:20:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 12:20:22,525 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-10-27 12:20:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:20:22,537 INFO L225 Difference]: With dead ends: 306 [2020-10-27 12:20:22,538 INFO L226 Difference]: Without dead ends: 151 [2020-10-27 12:20:22,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-27 12:20:22,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-27 12:20:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 132. [2020-10-27 12:20:22,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-27 12:20:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2020-10-27 12:20:22,627 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 83 [2020-10-27 12:20:22,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:20:22,628 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2020-10-27 12:20:22,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 12:20:22,628 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2020-10-27 12:20:22,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 12:20:22,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:20:22,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:20:22,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 12:20:22,633 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:20:22,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:20:22,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1310385639, now seen corresponding path program 1 times [2020-10-27 12:20:22,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:20:22,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913173265] [2020-10-27 12:20:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:20:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:22,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:22,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:22,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:27,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:27,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 12:20:27,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 12:20:27,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 12:20:27,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:27,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 12:20:27,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 12:20:27,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 12:20:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:27,955 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 12:20:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:27,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:28,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 12:20:28,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:28,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 12:20:28,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:28,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 12:20:28,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:28,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 12:20:28,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 12:20:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:28,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 12:20:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:28,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 12:20:28,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:28,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:20:28,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 12:20:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:20:28,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:20:28,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 12:20:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 12:20:28,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 12:20:28,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 12:20:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 12:20:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 12:20:28,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 12:20:28,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 12:20:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 12:20:28,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 12:20:28,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 12:20:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 12:20:28,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 12:20:28,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 12:20:28,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 12:20:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:28,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 12:20:28,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 12:20:28,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 12:20:28,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 12:20:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 12:20:28,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 12:20:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:20:28,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 12:20:28,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 12:20:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:28,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:28,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:28,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:28,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:20:28,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:28,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:28,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 12:20:28,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913173265] [2020-10-27 12:20:28,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 12:20:28,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 12:20:28,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10948163] [2020-10-27 12:20:28,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 12:20:28,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:20:28,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 12:20:28,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-27 12:20:28,805 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 11 states. [2020-10-27 12:20:29,034 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-27 12:20:29,509 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-27 12:20:29,762 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-27 12:20:29,978 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 12:20:30,224 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 12:20:30,482 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-27 12:20:30,737 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 12:20:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:20:31,834 INFO L93 Difference]: Finished difference Result 261 states and 312 transitions. [2020-10-27 12:20:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 12:20:31,835 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-10-27 12:20:31,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:20:31,838 INFO L225 Difference]: With dead ends: 261 [2020-10-27 12:20:31,838 INFO L226 Difference]: Without dead ends: 152 [2020-10-27 12:20:31,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-10-27 12:20:31,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-27 12:20:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 133. [2020-10-27 12:20:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-27 12:20:31,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-10-27 12:20:31,877 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 85 [2020-10-27 12:20:31,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:20:31,878 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-10-27 12:20:31,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 12:20:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-10-27 12:20:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 12:20:31,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:20:31,881 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:20:31,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 12:20:31,882 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:20:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:20:31,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1740418557, now seen corresponding path program 2 times [2020-10-27 12:20:31,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:20:31,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769013776] [2020-10-27 12:20:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:20:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:31,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:32,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:32,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 12:20:37,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 12:20:37,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-27 12:20:37,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 12:20:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 12:20:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 12:20:37,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,268 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 12:20:37,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:37,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 12:20:37,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:37,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 12:20:37,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:37,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 12:20:37,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:37,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:20:37,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 12:20:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:37,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 12:20:37,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 12:20:37,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:37,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 12:20:37,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 12:20:37,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:37,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:20:37,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 12:20:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 12:20:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:20:37,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:20:37,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:37,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 12:20:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 12:20:37,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-27 12:20:37,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 12:20:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 12:20:37,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:37,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 12:20:37,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:37,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 12:20:37,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 12:20:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 12:20:37,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:37,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 12:20:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:37,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:37,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:38,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:38,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 12:20:38,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 12:20:38,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-27 12:20:38,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 12:20:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 12:20:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:38,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:38,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:38,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:38,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 12:20:38,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:38,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 12:20:38,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 12:20:38,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:38,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 12:20:38,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:38,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 12:20:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:38,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:20:38,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:20:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 12:20:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:38,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:38,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:38,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:38,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:38,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:38,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:38,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-27 12:20:38,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769013776] [2020-10-27 12:20:38,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 12:20:38,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 12:20:38,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860716983] [2020-10-27 12:20:38,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 12:20:38,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:20:38,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 12:20:38,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-27 12:20:38,323 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 14 states. [2020-10-27 12:20:38,523 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-27 12:20:39,041 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-27 12:20:39,283 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-27 12:20:39,514 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 12:20:39,726 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 12:20:39,962 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 12:20:40,247 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 12:20:40,501 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-27 12:20:41,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:20:41,770 INFO L93 Difference]: Finished difference Result 263 states and 314 transitions. [2020-10-27 12:20:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 12:20:41,771 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2020-10-27 12:20:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:20:41,773 INFO L225 Difference]: With dead ends: 263 [2020-10-27 12:20:41,774 INFO L226 Difference]: Without dead ends: 153 [2020-10-27 12:20:41,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2020-10-27 12:20:41,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-27 12:20:41,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 134. [2020-10-27 12:20:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-27 12:20:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2020-10-27 12:20:41,803 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 87 [2020-10-27 12:20:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:20:41,804 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2020-10-27 12:20:41,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 12:20:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2020-10-27 12:20:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 12:20:41,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:20:41,806 INFO L422 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:20:41,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 12:20:41,807 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:20:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:20:41,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1139745177, now seen corresponding path program 3 times [2020-10-27 12:20:41,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:20:41,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007039546] [2020-10-27 12:20:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:20:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:41,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:42,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:46,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:46,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 12:20:46,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 12:20:46,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-27 12:20:46,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:46,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 12:20:46,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 12:20:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 12:20:46,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,082 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 12:20:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:47,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 12:20:47,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:47,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 12:20:47,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:47,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 12:20:47,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:47,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:20:47,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 12:20:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:47,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 12:20:47,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:47,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:20:47,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:47,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:47,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 12:20:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:20:47,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:47,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 12:20:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 12:20:47,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 12:20:47,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 12:20:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 12:20:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 12:20:47,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 12:20:47,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 12:20:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 12:20:47,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 12:20:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 12:20:47,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 12:20:47,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-27 12:20:47,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 12:20:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 12:20:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 12:20:47,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:47,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:47,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:47,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 12:20:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 12:20:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 12:20:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 12:20:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 12:20:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:48,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:48,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:20:48,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:20:48,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 12:20:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:48,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:48,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:48,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:48,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:48,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:48,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:48,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 12:20:48,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007039546] [2020-10-27 12:20:48,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 12:20:48,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 12:20:48,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820922655] [2020-10-27 12:20:48,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 12:20:48,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:20:48,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 12:20:48,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-27 12:20:48,062 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 14 states. [2020-10-27 12:20:48,262 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-27 12:20:48,768 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-27 12:20:49,016 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-27 12:20:49,227 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 12:20:49,466 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 12:20:49,692 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 12:20:49,938 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 12:20:50,231 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 12:20:50,502 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-27 12:20:51,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:20:51,632 INFO L93 Difference]: Finished difference Result 265 states and 316 transitions. [2020-10-27 12:20:51,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 12:20:51,633 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2020-10-27 12:20:51,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:20:51,635 INFO L225 Difference]: With dead ends: 265 [2020-10-27 12:20:51,636 INFO L226 Difference]: Without dead ends: 154 [2020-10-27 12:20:51,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2020-10-27 12:20:51,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-27 12:20:51,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 135. [2020-10-27 12:20:51,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-27 12:20:51,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 158 transitions. [2020-10-27 12:20:51,671 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 158 transitions. Word has length 89 [2020-10-27 12:20:51,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:20:51,671 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 158 transitions. [2020-10-27 12:20:51,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 12:20:51,672 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 158 transitions. [2020-10-27 12:20:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-27 12:20:51,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:20:51,674 INFO L422 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:20:51,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 12:20:51,674 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:20:51,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:20:51,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1332133635, now seen corresponding path program 4 times [2020-10-27 12:20:51,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:20:51,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756938897] [2020-10-27 12:20:51,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:20:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:51,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:51,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:52,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:52,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 12:20:52,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 12:20:52,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-10-27 12:20:52,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 12:20:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 12:20:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 12:20:52,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:52,782 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 12:20:52,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:52,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:52,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:52,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:52,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 12:20:52,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:20:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 12:20:52,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:52,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:52,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:52,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:52,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:52,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:52,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 12:20:52,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:20:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 12:20:52,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:52,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:52,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:52,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:52,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:52,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:52,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:52,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:52,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:52,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:52,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:52,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:52,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:52,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:52,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:52,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 12:20:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:20:53,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 12:20:53,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:20:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 12:20:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:53,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:20:53,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:53,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:53,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:20:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:20:53,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:53,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 12:20:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:20:53,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 12:20:53,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 12:20:53,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 12:20:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 12:20:53,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 12:20:53,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:20:53,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 12:20:53,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:20:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 12:20:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:53,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 12:20:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 12:20:53,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 12:20:53,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:20:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 12:20:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:20:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:20:53,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 12:20:53,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:53,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 12:20:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:20:53,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:20:53,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:20:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 12:20:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:20:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:53,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:53,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:20:53,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:20:53,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:20:53,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:20:53,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:20:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:20:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:20:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:20:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:20:53,296 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-27 12:20:53,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756938897] [2020-10-27 12:20:53,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 12:20:53,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 12:20:53,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541724132] [2020-10-27 12:20:53,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 12:20:53,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:20:53,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 12:20:53,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 12:20:53,299 INFO L87 Difference]: Start difference. First operand 135 states and 158 transitions. Second operand 7 states. [2020-10-27 12:20:53,504 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-27 12:20:53,771 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-27 12:20:54,000 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 12:20:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:20:55,321 INFO L93 Difference]: Finished difference Result 334 states and 408 transitions. [2020-10-27 12:20:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 12:20:55,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-27 12:20:55,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:20:55,326 INFO L225 Difference]: With dead ends: 334 [2020-10-27 12:20:55,326 INFO L226 Difference]: Without dead ends: 233 [2020-10-27 12:20:55,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-27 12:20:55,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-27 12:20:55,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2020-10-27 12:20:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-27 12:20:55,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2020-10-27 12:20:55,374 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 91 [2020-10-27 12:20:55,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:20:55,375 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2020-10-27 12:20:55,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 12:20:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2020-10-27 12:20:55,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-27 12:20:55,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:20:55,377 INFO L422 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:20:55,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 12:20:55,378 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:20:55,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:20:55,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1565406101, now seen corresponding path program 1 times [2020-10-27 12:20:55,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:20:55,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013932161] [2020-10-27 12:20:55,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:20:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:20:55,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:55,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:55,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:20:58,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:00,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:00,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 12:21:00,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 12:21:00,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-27 12:21:00,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 12:21:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 12:21:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 12:21:00,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,340 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 30 [2020-10-27 12:21:01,512 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 12:21:01,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:21:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:21:01,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 12:21:01,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:21:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 12:21:01,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:21:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:21:01,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 12:21:01,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:21:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 12:21:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:21:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:21:01,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:21:01,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:21:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:21:01,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:21:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:21:01,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:21:01,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:21:01,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:21:01,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 12:21:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:21:01,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 12:21:01,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:21:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 12:21:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:21:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:21:01,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:21:01,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:21:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:21:01,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:21:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:21:01,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:21:01,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:21:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:21:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 12:21:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:01,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:01,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:21:01,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:01,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 12:21:01,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:21:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:21:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 12:21:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:01,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 12:21:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:02,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:02,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 12:21:02,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-27 12:21:02,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 12:21:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 12:21:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 12:21:02,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:21:27,796 WARN L193 SmtUtils]: Spent 22.68 s on a formula simplification. DAG size of input: 445 DAG size of output: 254 [2020-10-27 12:21:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:21:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:21:28,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:21:30,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:21:30,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 12:21:30,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:21:30,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2180 [2020-10-27 12:21:30,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:21:30,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 12:21:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 12:21:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 12:21:30,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0