/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:16:14,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:16:14,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:16:14,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:16:14,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:16:14,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:16:14,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:16:14,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:16:14,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:16:14,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:16:14,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:16:14,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:16:14,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:16:14,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:16:14,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:16:14,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:16:14,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:16:14,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:16:14,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:16:14,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:16:14,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:16:14,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:16:14,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:16:14,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:16:14,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:16:14,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:16:14,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:16:14,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:16:14,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:16:14,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:16:14,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:16:14,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:16:14,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:16:14,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:16:14,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:16:14,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:16:14,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:16:14,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:16:14,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:16:14,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:16:14,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:16:14,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 23:16:14,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:16:14,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:16:14,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:16:14,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:16:14,625 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:16:14,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:16:14,625 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:16:14,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:16:14,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:16:14,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:16:14,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:16:14,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:16:14,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:16:14,627 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:16:14,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:16:14,627 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:16:14,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:16:14,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:16:14,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:16:14,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:16:14,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:16:14,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:16:14,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:16:14,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:16:14,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:16:14,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:16:14,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:16:14,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:16:14,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:16:14,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:16:15,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:16:15,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:16:15,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:16:15,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:16:15,068 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:16:15,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2020-10-27 23:16:15,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/250850758/9180149b3404431ab8130db36c82893e/FLAGdab487646 [2020-10-27 23:16:15,961 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:16:15,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2020-10-27 23:16:15,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/250850758/9180149b3404431ab8130db36c82893e/FLAGdab487646 [2020-10-27 23:16:16,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/250850758/9180149b3404431ab8130db36c82893e [2020-10-27 23:16:16,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:16:16,278 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:16:16,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:16:16,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:16:16,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:16:16,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e39eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16, skipping insertion in model container [2020-10-27 23:16:16,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:16:16,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:16:16,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:16:16,636 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:16:16,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:16:16,752 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:16:16,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16 WrapperNode [2020-10-27 23:16:16,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:16:16,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:16:16,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:16:16,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:16:16,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (1/1) ... [2020-10-27 23:16:16,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:16:16,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:16:16,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:16:16,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:16:16,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (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 23:16:16,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:16:16,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:16:16,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:16:16,948 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:16:16,948 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-10-27 23:16:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-10-27 23:16:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-10-27 23:16:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-10-27 23:16:16,950 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-10-27 23:16:16,950 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-10-27 23:16:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-10-27 23:16:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-10-27 23:16:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:16:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-10-27 23:16:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-10-27 23:16:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-10-27 23:16:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-10-27 23:16:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-10-27 23:16:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:16:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:16:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:16:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:16:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:16:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:16:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:16:16,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:16:16,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:16:16,970 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:16:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:16:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:16:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:16:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-10-27 23:16:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-10-27 23:16:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-10-27 23:16:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-10-27 23:16:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-10-27 23:16:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-10-27 23:16:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-10-27 23:16:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-10-27 23:16:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:16:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-10-27 23:16:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-10-27 23:16:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-10-27 23:16:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-10-27 23:16:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-10-27 23:16:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:16:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:16:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:16:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:16:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:16:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:16:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:16:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:16:17,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:16:17,992 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:16:17,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:16:17 BoogieIcfgContainer [2020-10-27 23:16:17,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:16:17,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:16:17,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:16:18,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:16:18,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:16:16" (1/3) ... [2020-10-27 23:16:18,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d83165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:16:18, skipping insertion in model container [2020-10-27 23:16:18,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:16" (2/3) ... [2020-10-27 23:16:18,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d83165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:16:18, skipping insertion in model container [2020-10-27 23:16:18,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:16:17" (3/3) ... [2020-10-27 23:16:18,004 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2020-10-27 23:16:18,017 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:16:18,024 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:16:18,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:16:18,070 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:16:18,071 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:16:18,071 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:16:18,071 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:16:18,071 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:16:18,071 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:16:18,071 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:16:18,072 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:16:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-10-27 23:16:18,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 23:16:18,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:18,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:16:18,109 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:18,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1010494976, now seen corresponding path program 1 times [2020-10-27 23:16:18,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:18,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782275650] [2020-10-27 23:16:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:18,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:18,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:18,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:19,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:19,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:19,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:19,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:19,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 23:16:19,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:16:19,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1644 [2020-10-27 23:16:19,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:16:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-27 23:16:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:16:19,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 23:16:20,374 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:16:20,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:20,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:20,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:16:20,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:20,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:16:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:20,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:16:20,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:16:20,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:20,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:20,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 23:16:20,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 23:16:20,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:20,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:20,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:16:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:16:20,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 23:16:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:20,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:16:20,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782275650] [2020-10-27 23:16:20,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:20,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:16:20,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207712424] [2020-10-27 23:16:20,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:16:20,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:20,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:16:20,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:16:20,786 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 11 states. [2020-10-27 23:16:22,130 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:16:22,370 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:16:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:16:24,105 INFO L93 Difference]: Finished difference Result 468 states and 713 transitions. [2020-10-27 23:16:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 23:16:24,108 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-10-27 23:16:24,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:16:24,119 INFO L225 Difference]: With dead ends: 468 [2020-10-27 23:16:24,120 INFO L226 Difference]: Without dead ends: 241 [2020-10-27 23:16:24,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:16:24,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-27 23:16:24,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-27 23:16:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-27 23:16:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 343 transitions. [2020-10-27 23:16:24,231 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 343 transitions. Word has length 72 [2020-10-27 23:16:24,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:16:24,232 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 343 transitions. [2020-10-27 23:16:24,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:16:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 343 transitions. [2020-10-27 23:16:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 23:16:24,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:24,238 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:16:24,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:16:24,238 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:24,239 INFO L82 PathProgramCache]: Analyzing trace with hash 903219255, now seen corresponding path program 1 times [2020-10-27 23:16:24,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:24,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079220254] [2020-10-27 23:16:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:24,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:24,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:24,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:28,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 23:16:29,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-27 23:16:29,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:16:29,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-27 23:16:29,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:16:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 23:16:29,579 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:29,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:29,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:16:29,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:29,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:29,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:29,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:29,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:29,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:29,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:16:29,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:29,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:29,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:29,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:16:29,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:29,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:29,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:29,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:16:29,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:29,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:16:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:16:29,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:16:29,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:29,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:29,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:16:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:29,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:29,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:16:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:29,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:29,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:29,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:29,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:16:29,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079220254] [2020-10-27 23:16:29,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:29,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:16:29,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444597148] [2020-10-27 23:16:29,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:16:29,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:29,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:16:29,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:16:29,966 INFO L87 Difference]: Start difference. First operand 241 states and 343 transitions. Second operand 13 states. [2020-10-27 23:16:31,586 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:16:31,814 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:16:32,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:16:32,855 INFO L93 Difference]: Finished difference Result 463 states and 657 transitions. [2020-10-27 23:16:32,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:16:32,856 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-27 23:16:32,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:16:32,867 INFO L225 Difference]: With dead ends: 463 [2020-10-27 23:16:32,867 INFO L226 Difference]: Without dead ends: 246 [2020-10-27 23:16:32,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:16:32,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-27 23:16:32,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2020-10-27 23:16:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-27 23:16:32,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 347 transitions. [2020-10-27 23:16:32,954 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 347 transitions. Word has length 94 [2020-10-27 23:16:32,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:16:32,957 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 347 transitions. [2020-10-27 23:16:32,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:16:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 347 transitions. [2020-10-27 23:16:32,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 23:16:32,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:32,968 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:16:32,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:16:32,968 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:32,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1245171939, now seen corresponding path program 1 times [2020-10-27 23:16:32,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:32,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746965062] [2020-10-27 23:16:32,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:33,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:36,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 23:16:38,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:38,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:16:38,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:16:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-27 23:16:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:16:38,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,297 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:38,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:16:38,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:38,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:38,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:38,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:38,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:38,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:16:38,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:38,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:38,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:38,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:16:38,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:38,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:38,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:38,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:38,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:16:38,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:38,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:38,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:38,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:16:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:16:38,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:16:38,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:38,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:38,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:38,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:16:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:38,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:38,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:38,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:16:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:38,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:38,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:16:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:38,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:38,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:38,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:38,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:16:38,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746965062] [2020-10-27 23:16:38,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:38,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:16:38,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61987299] [2020-10-27 23:16:38,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:16:38,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:38,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:16:38,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:16:38,696 INFO L87 Difference]: Start difference. First operand 246 states and 347 transitions. Second operand 13 states. [2020-10-27 23:16:40,280 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:16:40,501 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:16:41,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:16:41,498 INFO L93 Difference]: Finished difference Result 473 states and 668 transitions. [2020-10-27 23:16:41,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:16:41,499 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-27 23:16:41,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:16:41,503 INFO L225 Difference]: With dead ends: 473 [2020-10-27 23:16:41,504 INFO L226 Difference]: Without dead ends: 251 [2020-10-27 23:16:41,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:16:41,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-27 23:16:41,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2020-10-27 23:16:41,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-27 23:16:41,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 351 transitions. [2020-10-27 23:16:41,568 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 351 transitions. Word has length 102 [2020-10-27 23:16:41,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:16:41,569 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 351 transitions. [2020-10-27 23:16:41,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:16:41,569 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 351 transitions. [2020-10-27 23:16:41,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-27 23:16:41,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:41,571 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:16:41,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:16:41,572 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:41,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:41,572 INFO L82 PathProgramCache]: Analyzing trace with hash -851005549, now seen corresponding path program 1 times [2020-10-27 23:16:41,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:41,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508663564] [2020-10-27 23:16:41,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:41,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:41,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:41,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:42,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:46,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:46,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-27 23:16:46,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:46,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 23:16:46,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 23:16:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 23:16:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:46,815 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:46,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:46,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:46,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:46,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:46,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:16:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:46,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:46,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:46,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:46,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:46,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:46,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:46,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:46,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:46,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:46,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:46,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:46,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:46,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:46,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:46,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:46,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:46,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:46,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:46,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:46,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:16:46,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:46,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:46,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:46,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:46,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:46,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:46,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:46,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:46,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:46,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:46,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:46,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:46,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:46,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:46,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:46,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:46,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:46,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:16:46,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:46,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:46,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:16:46,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:47,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:47,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:47,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:47,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:16:47,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:16:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:47,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:16:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:16:47,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:16:47,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:16:47,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:47,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:47,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:47,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:16:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:47,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:47,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:47,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:16:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:47,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:47,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:16:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:47,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:16:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:47,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:47,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:47,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:16:47,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:47,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:16:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:47,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:47,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:47,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:47,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:47,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:16:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:47,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:16:47,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508663564] [2020-10-27 23:16:47,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:47,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:16:47,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729361471] [2020-10-27 23:16:47,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:16:47,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:47,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:16:47,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:16:47,218 INFO L87 Difference]: Start difference. First operand 251 states and 351 transitions. Second operand 12 states. [2020-10-27 23:16:48,101 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:16:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:16:51,159 INFO L93 Difference]: Finished difference Result 679 states and 945 transitions. [2020-10-27 23:16:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 23:16:51,160 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2020-10-27 23:16:51,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:16:51,167 INFO L225 Difference]: With dead ends: 679 [2020-10-27 23:16:51,167 INFO L226 Difference]: Without dead ends: 452 [2020-10-27 23:16:51,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:16:51,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-10-27 23:16:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 433. [2020-10-27 23:16:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-10-27 23:16:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 607 transitions. [2020-10-27 23:16:51,241 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 607 transitions. Word has length 110 [2020-10-27 23:16:51,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:16:51,241 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 607 transitions. [2020-10-27 23:16:51,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:16:51,242 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 607 transitions. [2020-10-27 23:16:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 23:16:51,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:51,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:16:51,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:16:51,244 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:51,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:51,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1576678073, now seen corresponding path program 1 times [2020-10-27 23:16:51,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:51,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70356632] [2020-10-27 23:16:51,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:51,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:51,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:51,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 23:16:56,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 23:16:56,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 23:16:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 23:16:56,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,521 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:56,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:56,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:16:56,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:56,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:56,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:56,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:56,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:16:56,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:56,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:56,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:56,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:16:56,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:56,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:56,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:56,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:56,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:16:56,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:16:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:56,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:56,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:16:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:16:56,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:16:56,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:16:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:56,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:56,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:16:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:56,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:56,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:16:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:56,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:16:56,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:16:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:16:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:56,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:16:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:16:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:56,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:16:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,898 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:16:56,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70356632] [2020-10-27 23:16:56,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:56,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:16:56,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68833082] [2020-10-27 23:16:56,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:16:56,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:56,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:16:56,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:16:56,901 INFO L87 Difference]: Start difference. First operand 433 states and 607 transitions. Second operand 12 states. [2020-10-27 23:16:58,128 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:17:01,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:01,030 INFO L93 Difference]: Finished difference Result 1196 states and 1678 transitions. [2020-10-27 23:17:01,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 23:17:01,035 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-10-27 23:17:01,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:01,042 INFO L225 Difference]: With dead ends: 1196 [2020-10-27 23:17:01,042 INFO L226 Difference]: Without dead ends: 787 [2020-10-27 23:17:01,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:17:01,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-10-27 23:17:01,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 780. [2020-10-27 23:17:01,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-10-27 23:17:01,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1095 transitions. [2020-10-27 23:17:01,169 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1095 transitions. Word has length 111 [2020-10-27 23:17:01,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:01,169 INFO L481 AbstractCegarLoop]: Abstraction has 780 states and 1095 transitions. [2020-10-27 23:17:01,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:17:01,170 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1095 transitions. [2020-10-27 23:17:01,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 23:17:01,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:01,173 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:01,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:17:01,173 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:01,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:01,174 INFO L82 PathProgramCache]: Analyzing trace with hash -47078726, now seen corresponding path program 1 times [2020-10-27 23:17:01,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:01,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166109046] [2020-10-27 23:17:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:01,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:01,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:01,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:02,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,442 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:06,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:06,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:17:06,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:06,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:06,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:06,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:06,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:06,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:17:06,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:06,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:06,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:06,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:06,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:17:06,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:06,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:06,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:06,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:17:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:06,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 23:17:06,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:17:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:06,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:06,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:17:06,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:17:06,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:06,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:17:06,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:06,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:17:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:06,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:06,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:17:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:06,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:17:06,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:17:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:06,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 23:17:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:06,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:06,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:06,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:17:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:06,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:06,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:06,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:06,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:06,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:06,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:06,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:06,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:06,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:06,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 23:17:06,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166109046] [2020-10-27 23:17:06,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:06,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:17:06,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900105622] [2020-10-27 23:17:06,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:17:06,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:06,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:17:06,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:17:06,993 INFO L87 Difference]: Start difference. First operand 780 states and 1095 transitions. Second operand 14 states. [2020-10-27 23:17:07,296 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:17:07,492 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:17:08,957 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:17:10,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:10,118 INFO L93 Difference]: Finished difference Result 1417 states and 1977 transitions. [2020-10-27 23:17:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:17:10,119 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 112 [2020-10-27 23:17:10,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:10,124 INFO L225 Difference]: With dead ends: 1417 [2020-10-27 23:17:10,124 INFO L226 Difference]: Without dead ends: 625 [2020-10-27 23:17:10,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:17:10,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-10-27 23:17:10,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2020-10-27 23:17:10,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-27 23:17:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 872 transitions. [2020-10-27 23:17:10,230 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 872 transitions. Word has length 112 [2020-10-27 23:17:10,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:10,230 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 872 transitions. [2020-10-27 23:17:10,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:17:10,230 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 872 transitions. [2020-10-27 23:17:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 23:17:10,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:10,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:10,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:17:10,233 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:10,234 INFO L82 PathProgramCache]: Analyzing trace with hash -78464203, now seen corresponding path program 1 times [2020-10-27 23:17:10,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:10,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852643111] [2020-10-27 23:17:10,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:10,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:10,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:10,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:10,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:10,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:10,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 23:17:15,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:17:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-27 23:17:15,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:17:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 23:17:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 23:17:15,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,524 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:15,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:15,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:17:15,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:15,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:15,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:15,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:15,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:15,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:15,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:17:15,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:17:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:15,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:15,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:15,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:17:15,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:15,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:17:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 23:17:15,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:17:15,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:15,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:15,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:15,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:17:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:15,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:17:15,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:17:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:15,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:15,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:15,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:17:15,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:17:15,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:17:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:17:15,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 23:17:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:15,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:15,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:15,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:15,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:17:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:15,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:15,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:15,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:15,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:15,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:15,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:15,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:17:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:15,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:17:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:16,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:16,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:16,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:16,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:17:16,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:16,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:16,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:17:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:16,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:16,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:16,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:16,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:16,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:16,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:16,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:16,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:17:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:16,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:16,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:16,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:16,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:16,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:16,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:16,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:16,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:17:16,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852643111] [2020-10-27 23:17:16,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:16,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:17:16,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867251688] [2020-10-27 23:17:16,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:17:16,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:16,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:17:16,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:17:16,046 INFO L87 Difference]: Start difference. First operand 625 states and 872 transitions. Second operand 18 states. [2020-10-27 23:17:16,307 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:17:16,918 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 164 [2020-10-27 23:17:17,102 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-27 23:17:17,332 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-27 23:17:17,625 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:17:17,988 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-27 23:17:18,597 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-27 23:17:18,817 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-27 23:17:19,024 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-27 23:17:19,271 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:17:21,297 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-27 23:17:21,490 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-27 23:17:21,954 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-27 23:17:22,128 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-27 23:17:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:22,422 INFO L93 Difference]: Finished difference Result 1416 states and 1960 transitions. [2020-10-27 23:17:22,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:17:22,423 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 111 [2020-10-27 23:17:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:22,429 INFO L225 Difference]: With dead ends: 1416 [2020-10-27 23:17:22,429 INFO L226 Difference]: Without dead ends: 815 [2020-10-27 23:17:22,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 23:17:22,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-10-27 23:17:22,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 782. [2020-10-27 23:17:22,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-10-27 23:17:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1074 transitions. [2020-10-27 23:17:22,541 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1074 transitions. Word has length 111 [2020-10-27 23:17:22,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:22,541 INFO L481 AbstractCegarLoop]: Abstraction has 782 states and 1074 transitions. [2020-10-27 23:17:22,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:17:22,541 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1074 transitions. [2020-10-27 23:17:22,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 23:17:22,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:22,546 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:22,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:17:22,547 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:22,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:22,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1753104216, now seen corresponding path program 1 times [2020-10-27 23:17:22,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:22,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678122617] [2020-10-27 23:17:22,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:22,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:22,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:22,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:22,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:27,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 23:17:27,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:17:27,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 23:17:27,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:27,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:17:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 23:17:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 23:17:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:27,784 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:27,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:27,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:27,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:27,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:27,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:17:27,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:27,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:27,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:27,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:27,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:27,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:27,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:27,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:27,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:27,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:27,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:27,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:27,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:27,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:27,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:27,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:27,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:27,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:27,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:27,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:27,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:27,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:27,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:27,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:17:27,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:17:27,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:27,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:27,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:27,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:27,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:27,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:27,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:27,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:27,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:27,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:27,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:27,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:28,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:17:28,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 23:17:28,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:28,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:28,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:17:28,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:28,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:28,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:28,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:17:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:28,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:17:28,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:17:28,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:28,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:28,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:28,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:28,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:28,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 23:17:28,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:17:28,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:17:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:17:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:17:28,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:28,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:28,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:28,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:28,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 23:17:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:28,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:28,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:17:28,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:17:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:28,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:28,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:28,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:17:28,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:28,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 23:17:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:28,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:28,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:28,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:28,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:17:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:28,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:28,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:28,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:28,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:28,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:17:28,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678122617] [2020-10-27 23:17:28,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:28,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:17:28,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915300360] [2020-10-27 23:17:28,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:17:28,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:28,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:17:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:17:28,347 INFO L87 Difference]: Start difference. First operand 782 states and 1074 transitions. Second operand 18 states. [2020-10-27 23:17:28,606 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:17:29,255 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 164 [2020-10-27 23:17:29,440 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-27 23:17:29,677 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-27 23:17:29,973 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:17:30,362 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-27 23:17:31,015 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-27 23:17:31,217 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-27 23:17:31,401 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-27 23:17:31,630 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:17:33,556 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-27 23:17:33,790 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-27 23:17:34,193 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-27 23:17:34,367 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-27 23:17:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:34,658 INFO L93 Difference]: Finished difference Result 1434 states and 1978 transitions. [2020-10-27 23:17:34,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:17:34,658 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-10-27 23:17:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:34,665 INFO L225 Difference]: With dead ends: 1434 [2020-10-27 23:17:34,665 INFO L226 Difference]: Without dead ends: 824 [2020-10-27 23:17:34,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 23:17:34,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-10-27 23:17:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 782. [2020-10-27 23:17:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-10-27 23:17:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1068 transitions. [2020-10-27 23:17:34,779 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1068 transitions. Word has length 112 [2020-10-27 23:17:34,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:34,781 INFO L481 AbstractCegarLoop]: Abstraction has 782 states and 1068 transitions. [2020-10-27 23:17:34,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:17:34,781 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1068 transitions. [2020-10-27 23:17:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-27 23:17:34,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:34,783 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:34,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:17:34,784 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:34,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:34,784 INFO L82 PathProgramCache]: Analyzing trace with hash -514384856, now seen corresponding path program 1 times [2020-10-27 23:17:34,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:34,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797216566] [2020-10-27 23:17:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:34,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:34,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4225 [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:17:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,289 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:39,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:39,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:17:39,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:39,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:39,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:39,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:39,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:39,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:17:39,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:39,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:39,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:39,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:17:39,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:39,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:39,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:17:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:39,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:17:39,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:39,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:39,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:17:39,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:17:39,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:17:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:17:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:39,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:17:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:39,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:39,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 23:17:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:39,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:39,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:39,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:39,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:39,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:39,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:39,634 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:17:39,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797216566] [2020-10-27 23:17:39,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:39,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:17:39,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655930865] [2020-10-27 23:17:39,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:17:39,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:39,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:17:39,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:17:39,636 INFO L87 Difference]: Start difference. First operand 782 states and 1068 transitions. Second operand 13 states. [2020-10-27 23:17:41,345 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:17:41,572 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:17:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:42,471 INFO L93 Difference]: Finished difference Result 1395 states and 1925 transitions. [2020-10-27 23:17:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:17:42,472 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-10-27 23:17:42,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:42,478 INFO L225 Difference]: With dead ends: 1395 [2020-10-27 23:17:42,479 INFO L226 Difference]: Without dead ends: 794 [2020-10-27 23:17:42,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:17:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-10-27 23:17:42,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2020-10-27 23:17:42,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2020-10-27 23:17:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1077 transitions. [2020-10-27 23:17:42,586 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1077 transitions. Word has length 113 [2020-10-27 23:17:42,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:42,587 INFO L481 AbstractCegarLoop]: Abstraction has 794 states and 1077 transitions. [2020-10-27 23:17:42,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:17:42,587 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1077 transitions. [2020-10-27 23:17:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-27 23:17:42,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:42,589 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:42,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:17:42,589 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:42,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:42,590 INFO L82 PathProgramCache]: Analyzing trace with hash 807455880, now seen corresponding path program 1 times [2020-10-27 23:17:42,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:42,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838687821] [2020-10-27 23:17:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:42,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-27 23:17:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:17:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648 [2020-10-27 23:17:43,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:17:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-27 23:17:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:17:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,510 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:43,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:43,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:17:43,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:43,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:17:43,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:43,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:43,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:17:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:43,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:43,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:17:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:43,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:17:43,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:43,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:43,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:43,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:43,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:17:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:43,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:43,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:17:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:17:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:43,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:43,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 23:17:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:43,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:43,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:43,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:43,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:43,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:17:43,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838687821] [2020-10-27 23:17:43,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:43,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:17:43,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862800251] [2020-10-27 23:17:43,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:17:43,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:43,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:17:43,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:17:43,826 INFO L87 Difference]: Start difference. First operand 794 states and 1077 transitions. Second operand 13 states. [2020-10-27 23:17:45,615 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:17:45,816 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:17:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:46,721 INFO L93 Difference]: Finished difference Result 1422 states and 1955 transitions. [2020-10-27 23:17:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:17:46,722 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-10-27 23:17:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:46,728 INFO L225 Difference]: With dead ends: 1422 [2020-10-27 23:17:46,728 INFO L226 Difference]: Without dead ends: 809 [2020-10-27 23:17:46,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:17:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-10-27 23:17:46,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2020-10-27 23:17:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-10-27 23:17:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1089 transitions. [2020-10-27 23:17:46,831 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1089 transitions. Word has length 113 [2020-10-27 23:17:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:46,832 INFO L481 AbstractCegarLoop]: Abstraction has 809 states and 1089 transitions. [2020-10-27 23:17:46,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:17:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1089 transitions. [2020-10-27 23:17:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 23:17:46,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:46,835 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:46,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:17:46,835 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:46,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:46,836 INFO L82 PathProgramCache]: Analyzing trace with hash -710901688, now seen corresponding path program 1 times [2020-10-27 23:17:46,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:46,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99657831] [2020-10-27 23:17:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:46,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:46,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:47,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:51,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:51,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-27 23:17:51,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:17:51,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:17:51,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 23:17:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-10-27 23:17:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:17:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,124 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:52,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:52,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:52,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:52,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:17:52,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:52,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:52,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:17:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:52,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:17:52,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:52,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:52,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:17:52,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:52,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:52,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:17:52,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:17:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:52,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:52,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:17:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:17:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:52,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:52,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:52,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 23:17:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:52,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:52,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:17:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:52,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 23:17:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:52,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:17:52,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 23:17:52,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [99657831] [2020-10-27 23:17:52,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:52,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-27 23:17:52,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714024186] [2020-10-27 23:17:52,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 23:17:52,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:52,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 23:17:52,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-10-27 23:17:52,569 INFO L87 Difference]: Start difference. First operand 809 states and 1089 transitions. Second operand 17 states. [2020-10-27 23:17:52,823 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:17:55,419 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:17:55,622 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:17:55,831 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:17:56,048 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:17:56,337 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:17:56,602 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:17:56,848 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:17:58,026 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:17:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:59,162 INFO L93 Difference]: Finished difference Result 1871 states and 2535 transitions. [2020-10-27 23:17:59,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 23:17:59,163 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 121 [2020-10-27 23:17:59,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:59,171 INFO L225 Difference]: With dead ends: 1871 [2020-10-27 23:17:59,172 INFO L226 Difference]: Without dead ends: 1243 [2020-10-27 23:17:59,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 23:17:59,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-10-27 23:17:59,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1088. [2020-10-27 23:17:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-27 23:17:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1459 transitions. [2020-10-27 23:17:59,322 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1459 transitions. Word has length 121 [2020-10-27 23:17:59,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:59,323 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1459 transitions. [2020-10-27 23:17:59,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 23:17:59,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1459 transitions. [2020-10-27 23:17:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 23:17:59,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:59,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:59,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 23:17:59,326 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:59,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:59,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1464537452, now seen corresponding path program 1 times [2020-10-27 23:17:59,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:59,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120452175] [2020-10-27 23:17:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:59,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:59,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:59,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 23:17:59,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:59,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-27 23:17:59,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:17:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 23:17:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:17:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:59,942 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:59,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:59,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:59,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:59,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:59,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:17:59,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:59,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:59,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:59,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:59,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:59,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:59,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:59,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:59,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:59,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:17:59,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:59,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:17:59,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:59,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:59,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:18:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:00,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 23:18:00,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 23:18:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:00,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:18:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:00,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:18:00,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:18:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:00,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:18:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:18:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 23:18:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:00,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:18:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:00,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:18:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 23:18:00,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:18:00,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 23:18:00,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:18:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:00,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:18:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:00,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:18:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:00,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:00,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:18:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:00,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 23:18:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:00,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:00,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:00,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:00,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:00,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:00,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:00,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 23:18:00,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120452175] [2020-10-27 23:18:00,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 23:18:00,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 23:18:00,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769150951] [2020-10-27 23:18:00,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 23:18:00,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:00,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 23:18:00,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-27 23:18:00,414 INFO L87 Difference]: Start difference. First operand 1088 states and 1459 transitions. Second operand 16 states. [2020-10-27 23:18:00,666 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:18:00,966 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:18:01,207 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:18:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:04,284 INFO L93 Difference]: Finished difference Result 2173 states and 2918 transitions. [2020-10-27 23:18:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:18:04,284 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 126 [2020-10-27 23:18:04,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:04,293 INFO L225 Difference]: With dead ends: 2173 [2020-10-27 23:18:04,293 INFO L226 Difference]: Without dead ends: 1108 [2020-10-27 23:18:04,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:18:04,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-27 23:18:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1088. [2020-10-27 23:18:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-27 23:18:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1447 transitions. [2020-10-27 23:18:04,458 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1447 transitions. Word has length 126 [2020-10-27 23:18:04,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:04,458 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1447 transitions. [2020-10-27 23:18:04,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 23:18:04,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1447 transitions. [2020-10-27 23:18:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-27 23:18:04,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:04,462 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:04,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 23:18:04,462 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:04,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:04,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1462151310, now seen corresponding path program 1 times [2020-10-27 23:18:04,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:04,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540877562] [2020-10-27 23:18:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:04,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:04,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4309 [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-27 23:18:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,035 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:09,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:09,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:18:09,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:09,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:18:09,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:18:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:18:09,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:18:09,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:09,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:09,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:18:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:18:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:18:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:09,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:18:09,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:18:09,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:09,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:09,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:09,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:18:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:09,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:18:09,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:18:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:09,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:09,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:18:09,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:09,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:09,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:09,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:09,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:18:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:09,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:09,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:09,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:18:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 23:18:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:18:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:09,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:09,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:18:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:09,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:18:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:18:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:18:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:09,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:09,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:18:09,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 23:18:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:09,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:09,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:09,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:09,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:09,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:09,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:09,634 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 23:18:09,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540877562] [2020-10-27 23:18:09,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:09,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-27 23:18:09,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533782195] [2020-10-27 23:18:09,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 23:18:09,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:09,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 23:18:09,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-10-27 23:18:09,637 INFO L87 Difference]: Start difference. First operand 1088 states and 1447 transitions. Second operand 20 states. [2020-10-27 23:18:10,097 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 163 [2020-10-27 23:18:10,363 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:10,877 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:12,374 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:18:12,761 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 164 [2020-10-27 23:18:13,172 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 166 [2020-10-27 23:18:14,938 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:15,150 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:18:15,360 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:18:15,576 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:18:16,741 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:18:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:18,827 INFO L93 Difference]: Finished difference Result 3370 states and 4529 transitions. [2020-10-27 23:18:18,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-27 23:18:18,834 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 137 [2020-10-27 23:18:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:18,847 INFO L225 Difference]: With dead ends: 3370 [2020-10-27 23:18:18,847 INFO L226 Difference]: Without dead ends: 2463 [2020-10-27 23:18:18,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=496, Invalid=1574, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 23:18:18,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2020-10-27 23:18:19,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2118. [2020-10-27 23:18:19,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2118 states. [2020-10-27 23:18:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 2850 transitions. [2020-10-27 23:18:19,175 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 2850 transitions. Word has length 137 [2020-10-27 23:18:19,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:19,175 INFO L481 AbstractCegarLoop]: Abstraction has 2118 states and 2850 transitions. [2020-10-27 23:18:19,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 23:18:19,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 2850 transitions. [2020-10-27 23:18:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-27 23:18:19,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:19,178 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:19,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 23:18:19,178 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:19,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:19,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1863318025, now seen corresponding path program 1 times [2020-10-27 23:18:19,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:19,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677367058] [2020-10-27 23:18:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 23:18:19,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-27 23:18:19,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-10-27 23:18:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:18:19,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,614 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:19,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:19,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:19,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:19,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:19,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:19,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:19,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:19,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:19,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:19,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:18:19,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:19,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:19,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:18:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:19,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:18:19,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:19,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:19,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:18:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:18:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:19,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:19,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 23:18:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:18:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 23:18:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 23:18:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:19,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:19,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:19,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:19,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:19,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:19,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:19,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 23:18:19,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677367058] [2020-10-27 23:18:19,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:19,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:18:19,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639409613] [2020-10-27 23:18:19,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:18:19,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:19,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:18:19,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:18:19,943 INFO L87 Difference]: Start difference. First operand 2118 states and 2850 transitions. Second operand 13 states. [2020-10-27 23:18:21,589 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:18:21,779 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:18:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:22,864 INFO L93 Difference]: Finished difference Result 4000 states and 5432 transitions. [2020-10-27 23:18:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:18:22,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 139 [2020-10-27 23:18:22,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:22,877 INFO L225 Difference]: With dead ends: 4000 [2020-10-27 23:18:22,877 INFO L226 Difference]: Without dead ends: 2154 [2020-10-27 23:18:22,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:18:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2020-10-27 23:18:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2154. [2020-10-27 23:18:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2154 states. [2020-10-27 23:18:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 2877 transitions. [2020-10-27 23:18:23,226 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 2877 transitions. Word has length 139 [2020-10-27 23:18:23,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:23,227 INFO L481 AbstractCegarLoop]: Abstraction has 2154 states and 2877 transitions. [2020-10-27 23:18:23,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:18:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 2877 transitions. [2020-10-27 23:18:23,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-27 23:18:23,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:23,230 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:23,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 23:18:23,231 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:23,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:23,231 INFO L82 PathProgramCache]: Analyzing trace with hash -343979682, now seen corresponding path program 1 times [2020-10-27 23:18:23,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:23,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992804810] [2020-10-27 23:18:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:23,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:23,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:25,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:25,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-27 23:18:25,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:18:25,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2655 [2020-10-27 23:18:25,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:18:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 23:18:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-27 23:18:25,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,213 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:26,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:26,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:18:26,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:26,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:18:26,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:26,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 23:18:26,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:26,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:26,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:26,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:26,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:18:26,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:26,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:18:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:26,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:26,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:26,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 23:18:26,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:18:26,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:18:26,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:18:26,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:26,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:26,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:18:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:18:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:18:26,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:18:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:26,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:18:26,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:18:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:26,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:26,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:18:26,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:18:26,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:18:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:26,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:26,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:18:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:18:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 23:18:26,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:18:26,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-27 23:18:26,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:18:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 23:18:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 23:18:26,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:18:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:26,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:26,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:18:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:26,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:26,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:18:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:26,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:26,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:26,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:26,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:18:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 23:18:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:26,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:26,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:18:26,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 23:18:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:26,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:26,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:26,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:26,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:26,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:26,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 23:18:26,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992804810] [2020-10-27 23:18:26,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:26,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 23:18:26,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833964348] [2020-10-27 23:18:26,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 23:18:26,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:26,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 23:18:26,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:18:26,982 INFO L87 Difference]: Start difference. First operand 2154 states and 2877 transitions. Second operand 19 states. [2020-10-27 23:18:27,265 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:18:27,475 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:18:28,459 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:18:29,828 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:31,689 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:31,909 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:32,109 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:32,329 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:32,543 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:18:32,778 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:18:33,198 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:18:35,376 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:36,192 INFO L93 Difference]: Finished difference Result 3688 states and 4841 transitions. [2020-10-27 23:18:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-27 23:18:36,193 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 145 [2020-10-27 23:18:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:36,204 INFO L225 Difference]: With dead ends: 3688 [2020-10-27 23:18:36,204 INFO L226 Difference]: Without dead ends: 2118 [2020-10-27 23:18:36,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 23:18:36,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-10-27 23:18:36,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1665. [2020-10-27 23:18:36,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1665 states. [2020-10-27 23:18:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2132 transitions. [2020-10-27 23:18:36,555 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2132 transitions. Word has length 145 [2020-10-27 23:18:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:36,555 INFO L481 AbstractCegarLoop]: Abstraction has 1665 states and 2132 transitions. [2020-10-27 23:18:36,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 23:18:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2132 transitions. [2020-10-27 23:18:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 23:18:36,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:36,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:36,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 23:18:36,558 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:36,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:36,558 INFO L82 PathProgramCache]: Analyzing trace with hash 210736804, now seen corresponding path program 1 times [2020-10-27 23:18:36,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:36,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846259898] [2020-10-27 23:18:36,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:36,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:36,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-27 23:18:37,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:18:37,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-10-27 23:18:37,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:18:37,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-27 23:18:37,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 23:18:37,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,543 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:37,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:37,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:37,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:37,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:37,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:37,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:37,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:18:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:18:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:18:37,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:18:37,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:18:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:37,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:37,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:18:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:37,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:18:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 23:18:37,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 23:18:37,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:18:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 23:18:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:18:37,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:18:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:37,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:37,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:37,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:18:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:37,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:37,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:18:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:38,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:38,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:38,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:38,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:18:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:38,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:38,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:38,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:18:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:38,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:38,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:38,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:38,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 23:18:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:38,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:18:38,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 23:18:38,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846259898] [2020-10-27 23:18:38,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:38,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:18:38,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753767622] [2020-10-27 23:18:38,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:18:38,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:38,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:18:38,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:18:38,081 INFO L87 Difference]: Start difference. First operand 1665 states and 2132 transitions. Second operand 18 states. [2020-10-27 23:18:38,356 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:18:38,591 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:18:40,667 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:18:40,932 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:18:41,073 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:18:42,570 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:18:42,804 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:43,072 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:18:43,317 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:43,562 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:18:43,793 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:47,525 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:18:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:49,710 INFO L93 Difference]: Finished difference Result 3390 states and 4492 transitions. [2020-10-27 23:18:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 23:18:49,711 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 146 [2020-10-27 23:18:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:49,723 INFO L225 Difference]: With dead ends: 3390 [2020-10-27 23:18:49,724 INFO L226 Difference]: Without dead ends: 2058 [2020-10-27 23:18:49,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=503, Invalid=1849, Unknown=0, NotChecked=0, Total=2352 [2020-10-27 23:18:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-10-27 23:18:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 1648. [2020-10-27 23:18:49,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1648 states. [2020-10-27 23:18:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2096 transitions. [2020-10-27 23:18:49,984 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2096 transitions. Word has length 146 [2020-10-27 23:18:49,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:49,985 INFO L481 AbstractCegarLoop]: Abstraction has 1648 states and 2096 transitions. [2020-10-27 23:18:49,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:18:49,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2096 transitions. [2020-10-27 23:18:49,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 23:18:49,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:49,987 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:49,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 23:18:49,988 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:49,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:49,988 INFO L82 PathProgramCache]: Analyzing trace with hash -346598247, now seen corresponding path program 1 times [2020-10-27 23:18:49,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:49,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699145107] [2020-10-27 23:18:49,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:50,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:50,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:50,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:50,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 23:18:50,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:18:50,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-27 23:18:50,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:18:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 23:18:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 23:18:50,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,070 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:51,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:51,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:51,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:51,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:18:51,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:51,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:51,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:51,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:18:51,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:18:51,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:18:51,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:51,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:51,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:51,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:51,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 23:18:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:51,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:18:51,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:18:51,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:18:51,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:51,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:51,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:18:51,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:18:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:18:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-27 23:18:51,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 23:18:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:18:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 23:18:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 23:18:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 23:18:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:18:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 23:18:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:51,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:51,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:51,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 23:18:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:51,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:51,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:51,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:18:51,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 23:18:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:51,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:51,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:18:51,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 23:18:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:51,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:51,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:51,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:51,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:51,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 23:18:51,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699145107] [2020-10-27 23:18:51,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:51,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:18:51,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44559008] [2020-10-27 23:18:51,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:18:51,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:51,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:18:51,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:18:51,652 INFO L87 Difference]: Start difference. First operand 1648 states and 2096 transitions. Second operand 18 states. [2020-10-27 23:18:52,217 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2020-10-27 23:18:52,472 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:53,870 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:18:54,278 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:18:55,581 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:18:55,715 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:18:56,900 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:18:57,149 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:18:57,423 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:18:57,701 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:18:57,951 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:18:58,201 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:18:58,665 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 178 [2020-10-27 23:18:59,692 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-27 23:19:00,787 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 178 [2020-10-27 23:19:02,762 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:19:03,770 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:19:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:19:05,220 INFO L93 Difference]: Finished difference Result 4216 states and 5477 transitions. [2020-10-27 23:19:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-27 23:19:05,221 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 147 [2020-10-27 23:19:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:19:05,237 INFO L225 Difference]: With dead ends: 4216 [2020-10-27 23:19:05,237 INFO L226 Difference]: Without dead ends: 3085 [2020-10-27 23:19:05,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=576, Invalid=1974, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 23:19:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2020-10-27 23:19:05,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 1614. [2020-10-27 23:19:05,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1614 states. [2020-10-27 23:19:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2044 transitions. [2020-10-27 23:19:05,618 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2044 transitions. Word has length 147 [2020-10-27 23:19:05,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:19:05,619 INFO L481 AbstractCegarLoop]: Abstraction has 1614 states and 2044 transitions. [2020-10-27 23:19:05,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:19:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2044 transitions. [2020-10-27 23:19:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 23:19:05,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:19:05,622 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:19:05,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 23:19:05,623 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:19:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:19:05,623 INFO L82 PathProgramCache]: Analyzing trace with hash 320731263, now seen corresponding path program 1 times [2020-10-27 23:19:05,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:19:05,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166041599] [2020-10-27 23:19:05,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:19:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 23:19:05,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-27 23:19:05,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 23:19:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 23:19:05,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,092 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:19:06,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:19:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:06,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:19:06,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:19:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:19:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:19:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:19:06,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:19:06,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:06,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:19:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:19:06,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:19:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:06,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:19:06,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:19:06,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:06,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:19:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:19:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:19:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:06,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:19:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:19:06,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:19:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:19:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:06,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:19:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:19:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:19:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 23:19:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:06,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:06,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:06,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:06,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:06,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:06,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:06,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:06,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:06,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:06,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 23:19:06,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166041599] [2020-10-27 23:19:06,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:19:06,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:19:06,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060965032] [2020-10-27 23:19:06,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:19:06,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:19:06,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:19:06,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:19:06,519 INFO L87 Difference]: Start difference. First operand 1614 states and 2044 transitions. Second operand 14 states. [2020-10-27 23:19:06,746 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:19:07,851 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:13,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:19:13,639 INFO L93 Difference]: Finished difference Result 4645 states and 5971 transitions. [2020-10-27 23:19:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 23:19:13,640 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 147 [2020-10-27 23:19:13,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:19:13,660 INFO L225 Difference]: With dead ends: 4645 [2020-10-27 23:19:13,660 INFO L226 Difference]: Without dead ends: 3537 [2020-10-27 23:19:13,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 23:19:13,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2020-10-27 23:19:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3355. [2020-10-27 23:19:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3355 states. [2020-10-27 23:19:14,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 4273 transitions. [2020-10-27 23:19:14,414 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 4273 transitions. Word has length 147 [2020-10-27 23:19:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:19:14,414 INFO L481 AbstractCegarLoop]: Abstraction has 3355 states and 4273 transitions. [2020-10-27 23:19:14,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:19:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 4273 transitions. [2020-10-27 23:19:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 23:19:14,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:19:14,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:14,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 23:19:14,418 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:19:14,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:19:14,419 INFO L82 PathProgramCache]: Analyzing trace with hash -563056914, now seen corresponding path program 1 times [2020-10-27 23:19:14,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:19:14,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344516977] [2020-10-27 23:19:14,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:19:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:14,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:14,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:14,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:19:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,696 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:19:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:19:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:19,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:19:19,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:19:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:19:19,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:19,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:19:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:19:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:19:19,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:19:19,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:19:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:19:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:19:19,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:19:19,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:19:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:19,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:19:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:19:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 23:19:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:19,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:19:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:19,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 23:19:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:19,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:19:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:19,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:19,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:19:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:19,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:19,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:19,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:19,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:19,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:19,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:19,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:19,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:19,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-27 23:19:20,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344516977] [2020-10-27 23:19:20,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:19:20,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:19:20,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261106903] [2020-10-27 23:19:20,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:19:20,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:19:20,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:19:20,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:19:20,018 INFO L87 Difference]: Start difference. First operand 3355 states and 4273 transitions. Second operand 13 states. [2020-10-27 23:19:22,116 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:19:22,342 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:19:23,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:19:23,452 INFO L93 Difference]: Finished difference Result 6118 states and 7907 transitions. [2020-10-27 23:19:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:19:23,453 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 148 [2020-10-27 23:19:23,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:19:23,469 INFO L225 Difference]: With dead ends: 6118 [2020-10-27 23:19:23,469 INFO L226 Difference]: Without dead ends: 3481 [2020-10-27 23:19:23,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:19:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2020-10-27 23:19:24,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 3481. [2020-10-27 23:19:24,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3481 states. [2020-10-27 23:19:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 4378 transitions. [2020-10-27 23:19:24,063 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 4378 transitions. Word has length 148 [2020-10-27 23:19:24,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:19:24,063 INFO L481 AbstractCegarLoop]: Abstraction has 3481 states and 4378 transitions. [2020-10-27 23:19:24,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:19:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 4378 transitions. [2020-10-27 23:19:24,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:19:24,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:19:24,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:19:24,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 23:19:24,067 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:19:24,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:19:24,068 INFO L82 PathProgramCache]: Analyzing trace with hash 263349513, now seen corresponding path program 1 times [2020-10-27 23:19:24,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:19:24,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540835001] [2020-10-27 23:19:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:19:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 23:19:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,507 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:19:24,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:19:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:24,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:19:24,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:19:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:19:24,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:24,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:19:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:19:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:24,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:19:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:24,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:19:24,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:24,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:19:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:24,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:19:24,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:19:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:24,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:19:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:19:24,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:19:24,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:19:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:24,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:24,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:19:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:24,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:19:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 23:19:24,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:19:24,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 23:19:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:19:24,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:19:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:19:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:24,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:19:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:19:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:24,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:24,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:19:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 23:19:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:24,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:24,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 23:19:24,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540835001] [2020-10-27 23:19:24,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:19:24,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:19:24,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868365620] [2020-10-27 23:19:24,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:19:24,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:19:24,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:19:24,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:19:24,911 INFO L87 Difference]: Start difference. First operand 3481 states and 4378 transitions. Second operand 14 states. [2020-10-27 23:19:25,151 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:28,191 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:19:33,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:19:33,369 INFO L93 Difference]: Finished difference Result 9365 states and 11953 transitions. [2020-10-27 23:19:33,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:19:33,370 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-27 23:19:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:19:33,402 INFO L225 Difference]: With dead ends: 9365 [2020-10-27 23:19:33,403 INFO L226 Difference]: Without dead ends: 7059 [2020-10-27 23:19:33,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 23:19:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7059 states. [2020-10-27 23:19:34,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7059 to 6200. [2020-10-27 23:19:34,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6200 states. [2020-10-27 23:19:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6200 states to 6200 states and 7831 transitions. [2020-10-27 23:19:34,464 INFO L78 Accepts]: Start accepts. Automaton has 6200 states and 7831 transitions. Word has length 149 [2020-10-27 23:19:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:19:34,465 INFO L481 AbstractCegarLoop]: Abstraction has 6200 states and 7831 transitions. [2020-10-27 23:19:34,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:19:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6200 states and 7831 transitions. [2020-10-27 23:19:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:19:34,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:19:34,470 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:19:34,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 23:19:34,470 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:19:34,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:19:34,471 INFO L82 PathProgramCache]: Analyzing trace with hash 2073787556, now seen corresponding path program 1 times [2020-10-27 23:19:34,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:19:34,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533863531] [2020-10-27 23:19:34,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:19:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:34,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:34,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:34,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:35,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:35,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-27 23:19:35,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:19:35,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1158 [2020-10-27 23:19:35,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:35,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:35,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 23:19:35,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 23:19:35,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:35,896 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:19:35,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:19:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:35,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:35,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:35,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:35,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:19:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:35,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:35,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:35,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:19:35,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:35,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:35,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:35,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:19:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:35,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:35,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:35,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:35,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:35,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:35,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:19:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:35,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:35,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:35,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:35,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:35,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:35,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:35,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:35,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:35,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:35,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:35,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:35,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:35,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:19:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:19:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:36,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:19:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:19:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:36,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:36,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:19:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 23:19:36,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:19:36,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:19:36,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:36,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 23:19:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:19:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 23:19:36,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:19:36,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 23:19:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:19:36,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:19:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:19:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:36,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:19:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:36,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:19:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:19:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:36,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 23:19:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:36,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:36,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:36,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:36,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:36,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 23:19:36,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533863531] [2020-10-27 23:19:36,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:19:36,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:19:36,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675497287] [2020-10-27 23:19:36,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:19:36,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:19:36,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:19:36,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:19:36,323 INFO L87 Difference]: Start difference. First operand 6200 states and 7831 transitions. Second operand 14 states. [2020-10-27 23:19:36,615 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:19:40,076 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 163