/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loop-invgen/fragtest_simple.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:38:13,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:38:13,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:38:13,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:38:13,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:38:13,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:38:13,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:38:13,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:38:13,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:38:13,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:38:13,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:38:13,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:38:13,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:38:13,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:38:13,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:38:13,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:38:13,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:38:13,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:38:13,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:38:13,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:38:13,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:38:13,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:38:13,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:38:13,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:38:13,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:38:13,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:38:13,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:38:13,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:38:13,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:38:13,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:38:13,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:38:13,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:38:13,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:38:13,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:38:13,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:38:13,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:38:13,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:38:13,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:38:13,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:38:13,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:38:13,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:38:13,834 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 01:38:13,894 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:38:13,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:38:13,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:38:13,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:38:13,898 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:38:13,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:38:13,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:38:13,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:38:13,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:38:13,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:38:13,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:38:13,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:38:13,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:38:13,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:38:13,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:38:13,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:38:13,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:38:13,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:38:13,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:38:13,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:38:13,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:38:13,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:38:13,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:38:13,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:38:13,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:38:13,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:38:13,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:38:13,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:38:13,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:38:13,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:38:14,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:38:14,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:38:14,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:38:14,333 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:38:14,334 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:38:14,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/fragtest_simple.i [2020-10-27 01:38:14,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3614e5116/d362d239ca8d4468ac4a98e90648a54f/FLAGca9287760 [2020-10-27 01:38:15,086 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:38:15,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/fragtest_simple.i [2020-10-27 01:38:15,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3614e5116/d362d239ca8d4468ac4a98e90648a54f/FLAGca9287760 [2020-10-27 01:38:15,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3614e5116/d362d239ca8d4468ac4a98e90648a54f [2020-10-27 01:38:15,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:38:15,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:38:15,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:38:15,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:38:15,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:38:15,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aef55e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15, skipping insertion in model container [2020-10-27 01:38:15,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:38:15,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:38:15,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:38:15,696 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:38:15,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:38:15,735 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:38:15,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15 WrapperNode [2020-10-27 01:38:15,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:38:15,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:38:15,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:38:15,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:38:15,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (1/1) ... [2020-10-27 01:38:15,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:38:15,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:38:15,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:38:15,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:38:15,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (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 01:38:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:38:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:38:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:38:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:38:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 01:38:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:38:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:38:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:38:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:38:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:38:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:38:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:38:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:38:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 01:38:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:38:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:38:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:38:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:38:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:38:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:38:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:38:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:38:16,256 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:38:16,256 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-27 01:38:16,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:38:16 BoogieIcfgContainer [2020-10-27 01:38:16,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:38:16,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:38:16,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:38:16,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:38:16,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:38:15" (1/3) ... [2020-10-27 01:38:16,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a67439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:38:16, skipping insertion in model container [2020-10-27 01:38:16,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:38:15" (2/3) ... [2020-10-27 01:38:16,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a67439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:38:16, skipping insertion in model container [2020-10-27 01:38:16,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:38:16" (3/3) ... [2020-10-27 01:38:16,268 INFO L111 eAbstractionObserver]: Analyzing ICFG fragtest_simple.i [2020-10-27 01:38:16,280 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:38:16,296 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:38:16,311 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:38:16,344 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:38:16,344 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:38:16,344 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:38:16,344 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:38:16,344 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:38:16,345 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:38:16,345 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:38:16,345 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:38:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-27 01:38:16,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 01:38:16,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:16,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:16,375 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:16,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:16,383 INFO L82 PathProgramCache]: Analyzing trace with hash -2051804430, now seen corresponding path program 1 times [2020-10-27 01:38:16,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:16,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471411537] [2020-10-27 01:38:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:16,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:16,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:16,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:16,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:17,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 01:38:17,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:38:17,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-27 01:38:17,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:38:17,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:17,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 01:38:17,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:38:17,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:17,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:17,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:17,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:17,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:17,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:38:17,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:17,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:17,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:17,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:17,136 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 01:38:17,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471411537] [2020-10-27 01:38:17,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:38:17,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:38:17,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342468200] [2020-10-27 01:38:17,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:38:17,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:17,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:38:17,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:38:17,165 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2020-10-27 01:38:17,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:17,456 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2020-10-27 01:38:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:38:17,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-27 01:38:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:17,467 INFO L225 Difference]: With dead ends: 62 [2020-10-27 01:38:17,467 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 01:38:17,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:38:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 01:38:17,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-27 01:38:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 01:38:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-10-27 01:38:17,522 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2020-10-27 01:38:17,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:17,523 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-10-27 01:38:17,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:38:17,523 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-10-27 01:38:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 01:38:17,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:17,525 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] [2020-10-27 01:38:17,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:38:17,525 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:17,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:17,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1608720032, now seen corresponding path program 1 times [2020-10-27 01:38:17,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:17,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604176510] [2020-10-27 01:38:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:17,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:17,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 01:38:17,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-27 01:38:17,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:38:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 01:38:17,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:17,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:17,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:17,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:17,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:17,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:17,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:38:17,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:17,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:17,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:38:17,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 01:38:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:17,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:17,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:17,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:17,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:38:17,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:17,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:38:17,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604176510] [2020-10-27 01:38:17,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:38:17,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:38:17,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443741388] [2020-10-27 01:38:17,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:38:17,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:17,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:38:17,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:38:17,900 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 6 states. [2020-10-27 01:38:18,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:18,104 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2020-10-27 01:38:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:38:18,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-27 01:38:18,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:18,108 INFO L225 Difference]: With dead ends: 54 [2020-10-27 01:38:18,108 INFO L226 Difference]: Without dead ends: 37 [2020-10-27 01:38:18,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:38:18,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-27 01:38:18,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2020-10-27 01:38:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 01:38:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2020-10-27 01:38:18,124 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 28 [2020-10-27 01:38:18,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:18,125 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2020-10-27 01:38:18,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:38:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2020-10-27 01:38:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 01:38:18,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:18,127 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:18,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:38:18,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:18,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:18,128 INFO L82 PathProgramCache]: Analyzing trace with hash -165440091, now seen corresponding path program 1 times [2020-10-27 01:38:18,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:18,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587490881] [2020-10-27 01:38:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:18,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:18,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:18,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:18,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 01:38:18,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:18,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-10-27 01:38:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:38:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 01:38:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:18,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:18,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:18,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:18,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:18,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:18,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:38:18,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:18,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:18,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:38:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:18,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:18,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:18,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:18,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:18,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:18,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:18,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:38:18,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587490881] [2020-10-27 01:38:18,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:18,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 01:38:18,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172217452] [2020-10-27 01:38:18,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:38:18,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:18,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:38:18,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:38:18,978 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 7 states. [2020-10-27 01:38:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:19,219 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2020-10-27 01:38:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:38:19,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-27 01:38:19,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:19,221 INFO L225 Difference]: With dead ends: 46 [2020-10-27 01:38:19,221 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 01:38:19,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:38:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 01:38:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-27 01:38:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 01:38:19,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-10-27 01:38:19,234 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 30 [2020-10-27 01:38:19,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:19,234 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-10-27 01:38:19,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:38:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-10-27 01:38:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-27 01:38:19,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:19,236 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:19,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:38:19,237 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:19,237 INFO L82 PathProgramCache]: Analyzing trace with hash -500203207, now seen corresponding path program 2 times [2020-10-27 01:38:19,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:19,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537555923] [2020-10-27 01:38:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:19,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:19,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:19,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:19,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 01:38:19,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:19,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-27 01:38:19,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:19,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:38:19,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:19,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 01:38:19,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:19,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:19,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:19,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:19,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:19,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:19,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:19,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:19,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:19,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:38:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:19,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:19,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:19,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:19,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:19,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:19,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:19,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:19,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:19,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:38:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:19,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:19,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:19,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:19,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:19,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:38:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:19,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 01:38:19,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537555923] [2020-10-27 01:38:19,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:19,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 01:38:19,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556010073] [2020-10-27 01:38:19,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:38:19,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:19,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:38:19,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:38:19,690 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 7 states. [2020-10-27 01:38:19,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:19,920 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2020-10-27 01:38:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:38:19,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-10-27 01:38:19,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:19,922 INFO L225 Difference]: With dead ends: 74 [2020-10-27 01:38:19,922 INFO L226 Difference]: Without dead ends: 51 [2020-10-27 01:38:19,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:38:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-27 01:38:19,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2020-10-27 01:38:19,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-27 01:38:19,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2020-10-27 01:38:19,934 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 38 [2020-10-27 01:38:19,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:19,934 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2020-10-27 01:38:19,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:38:19,935 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2020-10-27 01:38:19,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-27 01:38:19,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:19,936 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:19,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:38:19,936 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:19,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:19,937 INFO L82 PathProgramCache]: Analyzing trace with hash -536955394, now seen corresponding path program 3 times [2020-10-27 01:38:19,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:19,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102208416] [2020-10-27 01:38:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:19,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:20,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:20,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 01:38:20,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-10-27 01:38:20,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:38:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 01:38:20,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:20,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:20,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:20,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:20,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:20,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:20,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:20,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 01:38:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:20,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:20,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:20,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:20,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:20,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:20,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:20,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:20,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:38:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:20,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:20,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:20,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:20,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:20,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:20,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:20,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 01:38:20,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102208416] [2020-10-27 01:38:20,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:20,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:38:20,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783931572] [2020-10-27 01:38:20,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:38:20,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:20,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:38:20,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:38:20,614 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 8 states. [2020-10-27 01:38:20,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:20,893 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2020-10-27 01:38:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:38:20,894 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-10-27 01:38:20,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:20,895 INFO L225 Difference]: With dead ends: 56 [2020-10-27 01:38:20,895 INFO L226 Difference]: Without dead ends: 52 [2020-10-27 01:38:20,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-27 01:38:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-27 01:38:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2020-10-27 01:38:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-27 01:38:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2020-10-27 01:38:20,906 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 40 [2020-10-27 01:38:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:20,906 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2020-10-27 01:38:20,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:38:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2020-10-27 01:38:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-27 01:38:20,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:20,908 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:20,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:38:20,908 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:20,909 INFO L82 PathProgramCache]: Analyzing trace with hash -625657710, now seen corresponding path program 4 times [2020-10-27 01:38:20,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:20,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570802929] [2020-10-27 01:38:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:20,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:20,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:21,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:21,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 01:38:21,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:21,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-27 01:38:21,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:38:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:21,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 01:38:21,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:21,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:21,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:21,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:21,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:21,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:21,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:21,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:21,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 01:38:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:21,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:21,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:21,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:21,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:21,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:21,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:21,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:38:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:21,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:21,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:21,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:21,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:21,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:21,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:38:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:21,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:21,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:21,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:21,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:21,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:21,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:38:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:21,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-27 01:38:21,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570802929] [2020-10-27 01:38:21,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:21,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 01:38:21,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122983715] [2020-10-27 01:38:21,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:38:21,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:21,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:38:21,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:38:21,409 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 9 states. [2020-10-27 01:38:21,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:21,747 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2020-10-27 01:38:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:38:21,748 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2020-10-27 01:38:21,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:21,750 INFO L225 Difference]: With dead ends: 92 [2020-10-27 01:38:21,750 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 01:38:21,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:38:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 01:38:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2020-10-27 01:38:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 01:38:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2020-10-27 01:38:21,762 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 48 [2020-10-27 01:38:21,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:21,763 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2020-10-27 01:38:21,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:38:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2020-10-27 01:38:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-27 01:38:21,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:21,764 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:21,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 01:38:21,765 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:21,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:21,765 INFO L82 PathProgramCache]: Analyzing trace with hash 705755927, now seen corresponding path program 5 times [2020-10-27 01:38:21,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:21,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573341375] [2020-10-27 01:38:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:21,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:21,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:22,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 01:38:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-27 01:38:22,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:38:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 01:38:22,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:22,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:22,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:22,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:22,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:22,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:22,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:38:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:22,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:22,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:22,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:22,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:38:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:22,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:22,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:22,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:22,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:22,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:22,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:22,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:38:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:22,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:22,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:22,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:22,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:22,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:22,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:22,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:22,407 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 01:38:22,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573341375] [2020-10-27 01:38:22,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:22,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 01:38:22,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192511963] [2020-10-27 01:38:22,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:38:22,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:22,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:38:22,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:38:22,410 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 9 states. [2020-10-27 01:38:22,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:22,733 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2020-10-27 01:38:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:38:22,733 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-10-27 01:38:22,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:22,734 INFO L225 Difference]: With dead ends: 66 [2020-10-27 01:38:22,735 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 01:38:22,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:38:22,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 01:38:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2020-10-27 01:38:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-27 01:38:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2020-10-27 01:38:22,746 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 50 [2020-10-27 01:38:22,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:22,746 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2020-10-27 01:38:22,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:38:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2020-10-27 01:38:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 01:38:22,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:22,748 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:22,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 01:38:22,748 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:22,749 INFO L82 PathProgramCache]: Analyzing trace with hash -547269461, now seen corresponding path program 6 times [2020-10-27 01:38:22,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:22,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301023209] [2020-10-27 01:38:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:22,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:22,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:23,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:23,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 01:38:23,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:23,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-27 01:38:23,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:23,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:38:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 01:38:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:23,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:23,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:23,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:23,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:23,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:23,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:23,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:23,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:23,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:38:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:23,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:23,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:23,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:23,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:23,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:23,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:23,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:38:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:23,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:23,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:23,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:23,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:23,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:23,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:23,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:38:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:23,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:23,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:23,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:23,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:23,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:23,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:23,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:23,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:38:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:23,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:23,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:23,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:23,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:23,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:23,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:23,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:23,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:38:23,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:23,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 01:38:23,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301023209] [2020-10-27 01:38:23,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:23,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 01:38:23,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045521006] [2020-10-27 01:38:23,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 01:38:23,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:23,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 01:38:23,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:38:23,340 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 11 states. [2020-10-27 01:38:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:23,845 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2020-10-27 01:38:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:38:23,846 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-10-27 01:38:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:23,848 INFO L225 Difference]: With dead ends: 110 [2020-10-27 01:38:23,848 INFO L226 Difference]: Without dead ends: 79 [2020-10-27 01:38:23,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-27 01:38:23,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-27 01:38:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2020-10-27 01:38:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-27 01:38:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2020-10-27 01:38:23,860 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 58 [2020-10-27 01:38:23,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:23,860 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2020-10-27 01:38:23,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 01:38:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2020-10-27 01:38:23,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-27 01:38:23,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:23,862 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:23,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 01:38:23,862 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:23,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:23,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1555860240, now seen corresponding path program 7 times [2020-10-27 01:38:23,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:23,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112796882] [2020-10-27 01:38:23,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:23,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:24,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:24,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 01:38:24,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-10-27 01:38:24,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 01:38:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 01:38:24,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:25,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:25,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:25,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:25,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:25,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:25,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:25,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:25,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:25,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 01:38:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:25,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:25,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:25,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:25,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:25,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:25,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:38:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:25,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:25,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:25,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:25,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:25,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:25,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:38:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:25,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:25,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:25,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:25,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:25,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:38:25,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:25,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:38:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:25,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:25,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:25,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:25,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:25,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:25,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:25,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:25,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 28 proven. 32 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 01:38:25,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112796882] [2020-10-27 01:38:25,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:25,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 01:38:25,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618799024] [2020-10-27 01:38:25,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 01:38:25,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:25,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 01:38:25,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:38:25,122 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 10 states. [2020-10-27 01:38:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:25,545 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-10-27 01:38:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 01:38:25,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2020-10-27 01:38:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:25,547 INFO L225 Difference]: With dead ends: 76 [2020-10-27 01:38:25,547 INFO L226 Difference]: Without dead ends: 72 [2020-10-27 01:38:25,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-27 01:38:25,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-27 01:38:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-10-27 01:38:25,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 01:38:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2020-10-27 01:38:25,573 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 60 [2020-10-27 01:38:25,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:25,574 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2020-10-27 01:38:25,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 01:38:25,574 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2020-10-27 01:38:25,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 01:38:25,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:25,578 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:25,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 01:38:25,579 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:25,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:25,579 INFO L82 PathProgramCache]: Analyzing trace with hash 218948996, now seen corresponding path program 8 times [2020-10-27 01:38:25,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:25,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203217940] [2020-10-27 01:38:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:25,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:25,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:26,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:26,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 01:38:26,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:26,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-10-27 01:38:26,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:26,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 01:38:26,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:26,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 01:38:26,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:26,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:26,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:26,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:26,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:26,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:26,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:38:26,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:26,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:26,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:26,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:26,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 01:38:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:26,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:26,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:26,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:26,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:26,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:26,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:26,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:38:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:26,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:26,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:26,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:26,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:26,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:26,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:26,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:26,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:38:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:26,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:26,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:26,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:26,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:26,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:26,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:26,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:38:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:26,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:26,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:26,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:26,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:26,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:26,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:38:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:26,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:26,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:26,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:26,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:26,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:26,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:26,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:26,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:26,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:26,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 60 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 01:38:26,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203217940] [2020-10-27 01:38:26,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:26,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 01:38:26,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829913032] [2020-10-27 01:38:26,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 01:38:26,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:26,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 01:38:26,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:38:26,403 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 14 states. [2020-10-27 01:38:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:27,019 INFO L93 Difference]: Finished difference Result 128 states and 146 transitions. [2020-10-27 01:38:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 01:38:27,020 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-27 01:38:27,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:27,021 INFO L225 Difference]: With dead ends: 128 [2020-10-27 01:38:27,021 INFO L226 Difference]: Without dead ends: 93 [2020-10-27 01:38:27,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2020-10-27 01:38:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-27 01:38:27,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 73. [2020-10-27 01:38:27,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-27 01:38:27,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-10-27 01:38:27,050 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 68 [2020-10-27 01:38:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:27,054 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-10-27 01:38:27,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 01:38:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-10-27 01:38:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-27 01:38:27,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:27,056 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:27,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 01:38:27,056 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:27,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1771359351, now seen corresponding path program 9 times [2020-10-27 01:38:27,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:27,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594022251] [2020-10-27 01:38:27,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:27,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:27,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:28,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 01:38:28,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:28,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-10-27 01:38:28,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:38:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 01:38:28,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:28,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:28,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:28,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:28,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:28,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:28,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:28,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:28,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:28,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:38:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:28,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:28,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:28,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:28,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:28,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:28,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:38:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:28,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:28,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:28,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:28,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:38:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:28,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:28,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:28,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:28,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:28,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:28,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:38:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:28,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:28,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:28,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:38:28,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:28,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:38:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:28,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:28,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:28,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:28,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:28,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:28,196 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 40 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 01:38:28,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594022251] [2020-10-27 01:38:28,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:28,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 01:38:28,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654716276] [2020-10-27 01:38:28,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 01:38:28,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:28,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 01:38:28,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:38:28,199 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 11 states. [2020-10-27 01:38:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:28,679 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-10-27 01:38:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:38:28,679 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-27 01:38:28,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:28,680 INFO L225 Difference]: With dead ends: 86 [2020-10-27 01:38:28,681 INFO L226 Difference]: Without dead ends: 82 [2020-10-27 01:38:28,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-27 01:38:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-27 01:38:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2020-10-27 01:38:28,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-27 01:38:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2020-10-27 01:38:28,691 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 70 [2020-10-27 01:38:28,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:28,691 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2020-10-27 01:38:28,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 01:38:28,691 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2020-10-27 01:38:28,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-27 01:38:28,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:28,693 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:28,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 01:38:28,693 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:28,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:28,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1350368029, now seen corresponding path program 10 times [2020-10-27 01:38:28,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:28,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044857733] [2020-10-27 01:38:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:28,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 01:38:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612 [2020-10-27 01:38:29,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:38:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 01:38:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:29,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:29,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:38:29,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:29,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:38:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:29,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:29,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:29,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:29,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:38:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:29,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:29,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:29,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:38:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:29,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:29,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:29,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:38:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:29,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:29,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:29,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:38:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:29,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:29,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:29,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:29,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:38:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:29,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:29,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:29,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 84 proven. 30 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 01:38:29,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044857733] [2020-10-27 01:38:29,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:29,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 01:38:29,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315437376] [2020-10-27 01:38:29,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 01:38:29,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:29,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 01:38:29,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-27 01:38:29,579 INFO L87 Difference]: Start difference. First operand 81 states and 84 transitions. Second operand 16 states. [2020-10-27 01:38:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:30,339 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2020-10-27 01:38:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 01:38:30,339 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 78 [2020-10-27 01:38:30,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:30,340 INFO L225 Difference]: With dead ends: 146 [2020-10-27 01:38:30,341 INFO L226 Difference]: Without dead ends: 107 [2020-10-27 01:38:30,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2020-10-27 01:38:30,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-27 01:38:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2020-10-27 01:38:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-27 01:38:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2020-10-27 01:38:30,352 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 78 [2020-10-27 01:38:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:30,352 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2020-10-27 01:38:30,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 01:38:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2020-10-27 01:38:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 01:38:30,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:30,354 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:30,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 01:38:30,354 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:30,355 INFO L82 PathProgramCache]: Analyzing trace with hash -750172446, now seen corresponding path program 11 times [2020-10-27 01:38:30,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:30,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266792534] [2020-10-27 01:38:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:30,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:30,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 01:38:31,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:31,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-27 01:38:31,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 01:38:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 01:38:31,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:31,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:31,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:31,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:31,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:31,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:38:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:31,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:31,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:31,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:31,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:31,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:31,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:38:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:31,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:31,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:31,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:38:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:31,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:31,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:31,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:38:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:31,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:31,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:31,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:31,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:38:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:31,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:31,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:38:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:31,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:31,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:31,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:31,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:31,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 54 proven. 72 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 01:38:31,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266792534] [2020-10-27 01:38:31,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:31,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 01:38:31,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391193556] [2020-10-27 01:38:31,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 01:38:31,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:31,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 01:38:31,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:38:31,391 INFO L87 Difference]: Start difference. First operand 83 states and 86 transitions. Second operand 12 states. [2020-10-27 01:38:31,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:31,872 INFO L93 Difference]: Finished difference Result 96 states and 99 transitions. [2020-10-27 01:38:31,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 01:38:31,873 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-27 01:38:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:31,874 INFO L225 Difference]: With dead ends: 96 [2020-10-27 01:38:31,874 INFO L226 Difference]: Without dead ends: 92 [2020-10-27 01:38:31,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-27 01:38:31,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-27 01:38:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-10-27 01:38:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-27 01:38:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2020-10-27 01:38:31,884 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 80 [2020-10-27 01:38:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:31,884 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2020-10-27 01:38:31,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 01:38:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2020-10-27 01:38:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 01:38:31,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:31,886 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:31,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 01:38:31,886 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:31,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1868735862, now seen corresponding path program 12 times [2020-10-27 01:38:31,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:31,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73711156] [2020-10-27 01:38:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:31,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:32,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:32,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:32,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 01:38:32,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:32,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 921 [2020-10-27 01:38:32,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 01:38:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 01:38:32,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:33,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:33,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:38:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:33,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:33,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:33,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:38:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:33,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:33,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:33,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:38:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:33,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:33,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:38:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:33,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:33,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:33,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:38:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:33,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:33,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:38:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:33,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:33,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:33,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:33,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:33,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:38:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:33,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:33,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:33,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:33,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:38:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:33,082 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 110 proven. 42 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-27 01:38:33,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73711156] [2020-10-27 01:38:33,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:33,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 01:38:33,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043307639] [2020-10-27 01:38:33,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 01:38:33,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:33,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 01:38:33,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-27 01:38:33,085 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand 17 states. [2020-10-27 01:38:33,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:33,942 INFO L93 Difference]: Finished difference Result 164 states and 188 transitions. [2020-10-27 01:38:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 01:38:33,942 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 88 [2020-10-27 01:38:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:33,944 INFO L225 Difference]: With dead ends: 164 [2020-10-27 01:38:33,944 INFO L226 Difference]: Without dead ends: 121 [2020-10-27 01:38:33,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=269, Invalid=661, Unknown=0, NotChecked=0, Total=930 [2020-10-27 01:38:33,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-27 01:38:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 93. [2020-10-27 01:38:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-27 01:38:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions. [2020-10-27 01:38:33,956 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 88 [2020-10-27 01:38:33,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:33,956 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions. [2020-10-27 01:38:33,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 01:38:33,956 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions. [2020-10-27 01:38:33,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-27 01:38:33,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:33,957 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:33,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 01:38:33,957 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:33,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:33,958 INFO L82 PathProgramCache]: Analyzing trace with hash 2005581563, now seen corresponding path program 13 times [2020-10-27 01:38:33,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:33,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983411567] [2020-10-27 01:38:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:33,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:34,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 01:38:35,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1366 [2020-10-27 01:38:35,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:38:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 01:38:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:35,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:35,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:35,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:38:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:35,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:35,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:35,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:35,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:38:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:35,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:35,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:38:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:35,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:35,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:35,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:35,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:38:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:35,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:35,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:38:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:35,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:35,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:35,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:35,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:38:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:35,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:35,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:35,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:35,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:38:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:35,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:35,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:35,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:35,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:35,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:35,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:35,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:35,555 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 70 proven. 98 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-27 01:38:35,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983411567] [2020-10-27 01:38:35,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:35,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 01:38:35,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269505176] [2020-10-27 01:38:35,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 01:38:35,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:35,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 01:38:35,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-27 01:38:35,559 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand 13 states. [2020-10-27 01:38:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:36,208 INFO L93 Difference]: Finished difference Result 106 states and 109 transitions. [2020-10-27 01:38:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 01:38:36,209 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 90 [2020-10-27 01:38:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:36,210 INFO L225 Difference]: With dead ends: 106 [2020-10-27 01:38:36,210 INFO L226 Difference]: Without dead ends: 102 [2020-10-27 01:38:36,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-27 01:38:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-27 01:38:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2020-10-27 01:38:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-27 01:38:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 104 transitions. [2020-10-27 01:38:36,222 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 104 transitions. Word has length 90 [2020-10-27 01:38:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:36,222 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 104 transitions. [2020-10-27 01:38:36,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 01:38:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 104 transitions. [2020-10-27 01:38:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 01:38:36,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:36,224 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:36,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 01:38:36,224 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:36,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:36,224 INFO L82 PathProgramCache]: Analyzing trace with hash -782568305, now seen corresponding path program 14 times [2020-10-27 01:38:36,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:36,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281859570] [2020-10-27 01:38:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:36,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:36,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1095 [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 01:38:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:37,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:37,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:38:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:38:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:38:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:38:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:38:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:38:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:37,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:38:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:38:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:37,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:37,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:37,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:37,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:37,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:37,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:37,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 144 proven. 56 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-27 01:38:37,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281859570] [2020-10-27 01:38:37,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:37,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 01:38:37,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464307169] [2020-10-27 01:38:37,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 01:38:37,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:37,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 01:38:37,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-27 01:38:37,703 INFO L87 Difference]: Start difference. First operand 101 states and 104 transitions. Second operand 20 states. [2020-10-27 01:38:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:38,744 INFO L93 Difference]: Finished difference Result 182 states and 209 transitions. [2020-10-27 01:38:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 01:38:38,746 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 98 [2020-10-27 01:38:38,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:38,748 INFO L225 Difference]: With dead ends: 182 [2020-10-27 01:38:38,748 INFO L226 Difference]: Without dead ends: 135 [2020-10-27 01:38:38,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 01:38:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-27 01:38:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 103. [2020-10-27 01:38:38,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-27 01:38:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 106 transitions. [2020-10-27 01:38:38,768 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 106 transitions. Word has length 98 [2020-10-27 01:38:38,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:38,768 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 106 transitions. [2020-10-27 01:38:38,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 01:38:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 106 transitions. [2020-10-27 01:38:38,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 01:38:38,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:38,773 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:38,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 01:38:38,773 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:38,773 INFO L82 PathProgramCache]: Analyzing trace with hash 2009639892, now seen corresponding path program 15 times [2020-10-27 01:38:38,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:38,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432157798] [2020-10-27 01:38:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:38,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:39,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 01:38:40,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:40,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1525 [2020-10-27 01:38:40,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 01:38:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 01:38:40,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:38:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:40,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:38:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:40,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:38:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:40,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:38:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:40,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:38:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:40,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:38:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:40,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:38:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:40,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:38:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:40,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:40,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 88 proven. 128 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-27 01:38:40,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432157798] [2020-10-27 01:38:40,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:40,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 01:38:40,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817738245] [2020-10-27 01:38:40,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 01:38:40,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:40,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 01:38:40,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:38:40,553 INFO L87 Difference]: Start difference. First operand 103 states and 106 transitions. Second operand 14 states. [2020-10-27 01:38:41,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:41,204 INFO L93 Difference]: Finished difference Result 116 states and 119 transitions. [2020-10-27 01:38:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 01:38:41,206 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 100 [2020-10-27 01:38:41,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:41,207 INFO L225 Difference]: With dead ends: 116 [2020-10-27 01:38:41,207 INFO L226 Difference]: Without dead ends: 112 [2020-10-27 01:38:41,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2020-10-27 01:38:41,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-27 01:38:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-10-27 01:38:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-27 01:38:41,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 114 transitions. [2020-10-27 01:38:41,234 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 114 transitions. Word has length 100 [2020-10-27 01:38:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:41,234 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 114 transitions. [2020-10-27 01:38:41,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 01:38:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 114 transitions. [2020-10-27 01:38:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 01:38:41,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:41,239 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:41,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 01:38:41,239 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:41,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:41,240 INFO L82 PathProgramCache]: Analyzing trace with hash 149878888, now seen corresponding path program 16 times [2020-10-27 01:38:41,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:41,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536038551] [2020-10-27 01:38:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:41,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:41,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:42,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:42,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 01:38:42,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1518 [2020-10-27 01:38:42,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 01:38:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 01:38:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:43,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:38:43,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:38:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:43,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:38:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:38:43,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:38:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:43,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:38:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:43,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:38:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:43,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:38:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:43,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:38:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:43,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:38:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:43,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:38:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:43,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:43,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:43,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:43,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:43,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:43,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:43,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:43,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:43,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 180 proven. 72 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-27 01:38:43,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536038551] [2020-10-27 01:38:43,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:43,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 01:38:43,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759291183] [2020-10-27 01:38:43,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 01:38:43,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:43,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 01:38:43,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-10-27 01:38:43,284 INFO L87 Difference]: Start difference. First operand 111 states and 114 transitions. Second operand 22 states. [2020-10-27 01:38:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:44,530 INFO L93 Difference]: Finished difference Result 200 states and 230 transitions. [2020-10-27 01:38:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 01:38:44,531 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 108 [2020-10-27 01:38:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:44,533 INFO L225 Difference]: With dead ends: 200 [2020-10-27 01:38:44,533 INFO L226 Difference]: Without dead ends: 149 [2020-10-27 01:38:44,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=428, Invalid=1132, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 01:38:44,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-27 01:38:44,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 113. [2020-10-27 01:38:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-27 01:38:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2020-10-27 01:38:44,548 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 108 [2020-10-27 01:38:44,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:44,548 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2020-10-27 01:38:44,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 01:38:44,548 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2020-10-27 01:38:44,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-27 01:38:44,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:44,550 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:44,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 01:38:44,550 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:44,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:44,551 INFO L82 PathProgramCache]: Analyzing trace with hash -393732755, now seen corresponding path program 17 times [2020-10-27 01:38:44,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:44,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49121658] [2020-10-27 01:38:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:44,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-27 01:38:45,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:45,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:45,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:45,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:45,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:38:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:45,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:38:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:38:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:45,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:38:45,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:38:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:38:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:45,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:38:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:45,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:38:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:45,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:38:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:45,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:38:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:45,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:45,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:45,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:45,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:45,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:38:45,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:45,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 108 proven. 162 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-27 01:38:45,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49121658] [2020-10-27 01:38:45,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:45,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 01:38:45,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653511357] [2020-10-27 01:38:45,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 01:38:45,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:45,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 01:38:45,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:38:45,924 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand 15 states. [2020-10-27 01:38:46,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:46,608 INFO L93 Difference]: Finished difference Result 126 states and 129 transitions. [2020-10-27 01:38:46,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 01:38:46,609 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 110 [2020-10-27 01:38:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:46,610 INFO L225 Difference]: With dead ends: 126 [2020-10-27 01:38:46,610 INFO L226 Difference]: Without dead ends: 122 [2020-10-27 01:38:46,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2020-10-27 01:38:46,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-27 01:38:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2020-10-27 01:38:46,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-27 01:38:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 124 transitions. [2020-10-27 01:38:46,622 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 124 transitions. Word has length 110 [2020-10-27 01:38:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:46,622 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 124 transitions. [2020-10-27 01:38:46,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 01:38:46,622 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 124 transitions. [2020-10-27 01:38:46,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 01:38:46,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:46,624 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:46,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 01:38:46,624 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:46,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:46,625 INFO L82 PathProgramCache]: Analyzing trace with hash 479445249, now seen corresponding path program 18 times [2020-10-27 01:38:46,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:46,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013117435] [2020-10-27 01:38:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:46,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:46,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1392 [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-27 01:38:48,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:48,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:48,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:38:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:38:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:38:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:48,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:38:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:48,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:38:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:38:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:48,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:38:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:48,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:38:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:48,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:38:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:38:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:48,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:48,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:48,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:48,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:48,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:48,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:48,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 220 proven. 90 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-27 01:38:48,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013117435] [2020-10-27 01:38:48,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:48,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-27 01:38:48,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344036364] [2020-10-27 01:38:48,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-27 01:38:48,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:48,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-27 01:38:48,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-10-27 01:38:48,490 INFO L87 Difference]: Start difference. First operand 121 states and 124 transitions. Second operand 24 states. [2020-10-27 01:38:49,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:49,920 INFO L93 Difference]: Finished difference Result 218 states and 251 transitions. [2020-10-27 01:38:49,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 01:38:49,921 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 118 [2020-10-27 01:38:49,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:49,923 INFO L225 Difference]: With dead ends: 218 [2020-10-27 01:38:49,923 INFO L226 Difference]: Without dead ends: 163 [2020-10-27 01:38:49,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=515, Invalid=1377, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 01:38:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-27 01:38:49,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 123. [2020-10-27 01:38:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-27 01:38:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 126 transitions. [2020-10-27 01:38:49,943 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 126 transitions. Word has length 118 [2020-10-27 01:38:49,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:49,943 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 126 transitions. [2020-10-27 01:38:49,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-27 01:38:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 126 transitions. [2020-10-27 01:38:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 01:38:49,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:49,945 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:49,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 01:38:49,945 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:49,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:49,946 INFO L82 PathProgramCache]: Analyzing trace with hash 121250758, now seen corresponding path program 19 times [2020-10-27 01:38:49,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:49,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877507614] [2020-10-27 01:38:49,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:49,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:50,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-27 01:38:51,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:51,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1284 [2020-10-27 01:38:51,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 01:38:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 01:38:51,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:38:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:38:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:38:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:38:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:38:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:38:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:51,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:38:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:38:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:51,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:38:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:38:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:51,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:51,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:51,544 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 130 proven. 200 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-27 01:38:51,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877507614] [2020-10-27 01:38:51,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:51,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 01:38:51,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673721385] [2020-10-27 01:38:51,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 01:38:51,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:51,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 01:38:51,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-10-27 01:38:51,546 INFO L87 Difference]: Start difference. First operand 123 states and 126 transitions. Second operand 16 states. [2020-10-27 01:38:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:52,414 INFO L93 Difference]: Finished difference Result 136 states and 139 transitions. [2020-10-27 01:38:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 01:38:52,415 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 120 [2020-10-27 01:38:52,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:52,417 INFO L225 Difference]: With dead ends: 136 [2020-10-27 01:38:52,417 INFO L226 Difference]: Without dead ends: 132 [2020-10-27 01:38:52,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-27 01:38:52,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-27 01:38:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2020-10-27 01:38:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-27 01:38:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 134 transitions. [2020-10-27 01:38:52,429 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 134 transitions. Word has length 120 [2020-10-27 01:38:52,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:52,430 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 134 transitions. [2020-10-27 01:38:52,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 01:38:52,430 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 134 transitions. [2020-10-27 01:38:52,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 01:38:52,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:52,432 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:52,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 01:38:52,432 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:52,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1884660134, now seen corresponding path program 20 times [2020-10-27 01:38:52,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:52,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841865457] [2020-10-27 01:38:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:52,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:52,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1314 [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 01:38:53,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:54,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:38:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:38:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:38:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:38:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:38:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:54,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:38:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:38:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:38:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:54,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:38:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:38:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:38:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:54,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:54,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:54,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:54,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:54,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 264 proven. 110 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-27 01:38:54,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841865457] [2020-10-27 01:38:54,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:54,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 01:38:54,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230901619] [2020-10-27 01:38:54,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 01:38:54,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:54,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 01:38:54,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2020-10-27 01:38:54,255 INFO L87 Difference]: Start difference. First operand 131 states and 134 transitions. Second operand 26 states. [2020-10-27 01:38:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:55,749 INFO L93 Difference]: Finished difference Result 236 states and 272 transitions. [2020-10-27 01:38:55,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 01:38:55,752 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 128 [2020-10-27 01:38:55,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:55,754 INFO L225 Difference]: With dead ends: 236 [2020-10-27 01:38:55,754 INFO L226 Difference]: Without dead ends: 177 [2020-10-27 01:38:55,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=610, Invalid=1646, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 01:38:55,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-27 01:38:55,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 133. [2020-10-27 01:38:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-27 01:38:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 136 transitions. [2020-10-27 01:38:55,769 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 136 transitions. Word has length 128 [2020-10-27 01:38:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:55,769 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 136 transitions. [2020-10-27 01:38:55,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 01:38:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 136 transitions. [2020-10-27 01:38:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-27 01:38:55,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:55,771 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:55,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 01:38:55,771 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:55,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:55,772 INFO L82 PathProgramCache]: Analyzing trace with hash 54251231, now seen corresponding path program 21 times [2020-10-27 01:38:55,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:55,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825689817] [2020-10-27 01:38:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:55,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:56,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1363 [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-27 01:38:57,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:38:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:38:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:38:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:38:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:38:57,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:38:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:38:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:38:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:38:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:38:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:38:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:38:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:57,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:57,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:57,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:38:57,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:57,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:38:57,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:57,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:38:57,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:38:57,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 154 proven. 242 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-27 01:38:57,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825689817] [2020-10-27 01:38:57,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:38:57,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 01:38:57,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122571733] [2020-10-27 01:38:57,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 01:38:57,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:57,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 01:38:57,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-10-27 01:38:57,464 INFO L87 Difference]: Start difference. First operand 133 states and 136 transitions. Second operand 17 states. [2020-10-27 01:38:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:58,353 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2020-10-27 01:38:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 01:38:58,354 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 130 [2020-10-27 01:38:58,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:58,356 INFO L225 Difference]: With dead ends: 146 [2020-10-27 01:38:58,356 INFO L226 Difference]: Without dead ends: 142 [2020-10-27 01:38:58,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=292, Invalid=700, Unknown=0, NotChecked=0, Total=992 [2020-10-27 01:38:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-27 01:38:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2020-10-27 01:38:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-27 01:38:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 144 transitions. [2020-10-27 01:38:58,369 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 144 transitions. Word has length 130 [2020-10-27 01:38:58,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:58,370 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 144 transitions. [2020-10-27 01:38:58,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 01:38:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 144 transitions. [2020-10-27 01:38:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-27 01:38:58,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:58,371 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:58,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 01:38:58,372 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:58,372 INFO L82 PathProgramCache]: Analyzing trace with hash 729800819, now seen corresponding path program 22 times [2020-10-27 01:38:58,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:58,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189767747] [2020-10-27 01:38:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:58,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:58,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:59,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:59,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 01:38:59,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:38:59,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1502 [2020-10-27 01:38:59,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 01:38:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:38:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-27 01:38:59,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:00,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:00,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:00,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:39:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:39:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:00,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:39:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:00,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:39:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:39:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:00,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:39:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:39:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:00,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:39:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:00,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:39:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:39:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:00,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:39:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:00,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:39:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:00,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:00,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:00,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 312 proven. 132 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-27 01:39:00,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189767747] [2020-10-27 01:39:00,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:00,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 01:39:00,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703955305] [2020-10-27 01:39:00,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 01:39:00,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:00,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 01:39:00,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2020-10-27 01:39:00,474 INFO L87 Difference]: Start difference. First operand 141 states and 144 transitions. Second operand 28 states. [2020-10-27 01:39:02,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:02,265 INFO L93 Difference]: Finished difference Result 254 states and 293 transitions. [2020-10-27 01:39:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 01:39:02,266 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 138 [2020-10-27 01:39:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:02,269 INFO L225 Difference]: With dead ends: 254 [2020-10-27 01:39:02,269 INFO L226 Difference]: Without dead ends: 191 [2020-10-27 01:39:02,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=713, Invalid=1939, Unknown=0, NotChecked=0, Total=2652 [2020-10-27 01:39:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-27 01:39:02,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 143. [2020-10-27 01:39:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-27 01:39:02,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 146 transitions. [2020-10-27 01:39:02,285 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 146 transitions. Word has length 138 [2020-10-27 01:39:02,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:02,285 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 146 transitions. [2020-10-27 01:39:02,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 01:39:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 146 transitions. [2020-10-27 01:39:02,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-27 01:39:02,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:02,287 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:02,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 01:39:02,288 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:02,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:02,288 INFO L82 PathProgramCache]: Analyzing trace with hash -2032783688, now seen corresponding path program 23 times [2020-10-27 01:39:02,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:02,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569065399] [2020-10-27 01:39:02,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:02,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-27 01:39:04,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:04,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1912 [2020-10-27 01:39:04,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 01:39:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:39:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-27 01:39:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:04,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:39:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:39:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:39:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:39:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:39:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:39:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:39:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:39:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:39:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:39:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:04,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:39:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:39:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:04,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:04,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:04,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:04,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:04,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:04,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 180 proven. 288 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-27 01:39:04,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569065399] [2020-10-27 01:39:04,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:04,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 01:39:04,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371997592] [2020-10-27 01:39:04,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 01:39:04,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:04,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 01:39:04,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2020-10-27 01:39:04,550 INFO L87 Difference]: Start difference. First operand 143 states and 146 transitions. Second operand 18 states. [2020-10-27 01:39:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:05,529 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2020-10-27 01:39:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 01:39:05,529 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 140 [2020-10-27 01:39:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:05,531 INFO L225 Difference]: With dead ends: 156 [2020-10-27 01:39:05,531 INFO L226 Difference]: Without dead ends: 152 [2020-10-27 01:39:05,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=329, Invalid=727, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 01:39:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-27 01:39:05,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2020-10-27 01:39:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-27 01:39:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 154 transitions. [2020-10-27 01:39:05,544 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 154 transitions. Word has length 140 [2020-10-27 01:39:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:05,544 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 154 transitions. [2020-10-27 01:39:05,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 01:39:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 154 transitions. [2020-10-27 01:39:05,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 01:39:05,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:05,545 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:05,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 01:39:05,546 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:05,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:05,546 INFO L82 PathProgramCache]: Analyzing trace with hash -2008197300, now seen corresponding path program 24 times [2020-10-27 01:39:05,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:05,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145906542] [2020-10-27 01:39:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:05,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1513 [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-27 01:39:07,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:07,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:39:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:39:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:39:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:39:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:39:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:07,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:39:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:39:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:39:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:07,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:39:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:39:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:39:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:39:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:07,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:07,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:07,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:39:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:07,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:07,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 362 proven. 156 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-27 01:39:07,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145906542] [2020-10-27 01:39:07,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:07,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-27 01:39:07,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020713538] [2020-10-27 01:39:07,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-27 01:39:07,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:07,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-27 01:39:07,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=601, Unknown=0, NotChecked=0, Total=812 [2020-10-27 01:39:07,681 INFO L87 Difference]: Start difference. First operand 151 states and 154 transitions. Second operand 29 states. [2020-10-27 01:39:09,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:09,506 INFO L93 Difference]: Finished difference Result 272 states and 314 transitions. [2020-10-27 01:39:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 01:39:09,507 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 148 [2020-10-27 01:39:09,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:09,510 INFO L225 Difference]: With dead ends: 272 [2020-10-27 01:39:09,510 INFO L226 Difference]: Without dead ends: 205 [2020-10-27 01:39:09,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=809, Invalid=2161, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 01:39:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-27 01:39:09,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 153. [2020-10-27 01:39:09,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-27 01:39:09,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 156 transitions. [2020-10-27 01:39:09,529 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 156 transitions. Word has length 148 [2020-10-27 01:39:09,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:09,531 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 156 transitions. [2020-10-27 01:39:09,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-27 01:39:09,531 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 156 transitions. [2020-10-27 01:39:09,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-27 01:39:09,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:09,533 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:09,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 01:39:09,533 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:09,534 INFO L82 PathProgramCache]: Analyzing trace with hash 4084561, now seen corresponding path program 25 times [2020-10-27 01:39:09,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:09,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371894407] [2020-10-27 01:39:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:09,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:10,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:11,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 01:39:11,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2388 [2020-10-27 01:39:11,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 01:39:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:39:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-27 01:39:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:12,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:12,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:39:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:39:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:39:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:39:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:39:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:39:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:39:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:39:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:39:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:39:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:39:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:39:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:39:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:12,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:12,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:12,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:12,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:12,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:12,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:12,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 208 proven. 338 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-27 01:39:12,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371894407] [2020-10-27 01:39:12,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:12,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 01:39:12,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905824255] [2020-10-27 01:39:12,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 01:39:12,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:12,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 01:39:12,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2020-10-27 01:39:12,307 INFO L87 Difference]: Start difference. First operand 153 states and 156 transitions. Second operand 19 states. [2020-10-27 01:39:13,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:13,318 INFO L93 Difference]: Finished difference Result 166 states and 169 transitions. [2020-10-27 01:39:13,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 01:39:13,319 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 150 [2020-10-27 01:39:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:13,322 INFO L225 Difference]: With dead ends: 166 [2020-10-27 01:39:13,322 INFO L226 Difference]: Without dead ends: 162 [2020-10-27 01:39:13,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=816, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 01:39:13,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-27 01:39:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2020-10-27 01:39:13,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-27 01:39:13,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 164 transitions. [2020-10-27 01:39:13,335 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 164 transitions. Word has length 150 [2020-10-27 01:39:13,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:13,335 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 164 transitions. [2020-10-27 01:39:13,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 01:39:13,335 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 164 transitions. [2020-10-27 01:39:13,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 01:39:13,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:13,336 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:13,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 01:39:13,337 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:13,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1446499045, now seen corresponding path program 26 times [2020-10-27 01:39:13,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:13,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847476787] [2020-10-27 01:39:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:13,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:13,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:14,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1603 [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-27 01:39:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:15,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:39:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:39:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:39:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:39:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:39:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:15,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:39:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:15,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:39:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:39:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:39:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:15,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:39:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:39:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:15,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:39:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:39:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:15,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:39:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:15,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:15,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 420 proven. 182 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-27 01:39:15,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847476787] [2020-10-27 01:39:15,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:15,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-27 01:39:15,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466760338] [2020-10-27 01:39:15,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-27 01:39:15,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:15,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-27 01:39:15,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=735, Unknown=0, NotChecked=0, Total=992 [2020-10-27 01:39:15,685 INFO L87 Difference]: Start difference. First operand 161 states and 164 transitions. Second operand 32 states. [2020-10-27 01:39:17,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:17,817 INFO L93 Difference]: Finished difference Result 290 states and 335 transitions. [2020-10-27 01:39:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-27 01:39:17,818 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 158 [2020-10-27 01:39:17,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:17,821 INFO L225 Difference]: With dead ends: 290 [2020-10-27 01:39:17,821 INFO L226 Difference]: Without dead ends: 219 [2020-10-27 01:39:17,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=943, Invalid=2597, Unknown=0, NotChecked=0, Total=3540 [2020-10-27 01:39:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-27 01:39:17,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 163. [2020-10-27 01:39:17,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-27 01:39:17,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 166 transitions. [2020-10-27 01:39:17,838 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 166 transitions. Word has length 158 [2020-10-27 01:39:17,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:17,839 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 166 transitions. [2020-10-27 01:39:17,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-27 01:39:17,839 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 166 transitions. [2020-10-27 01:39:17,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 01:39:17,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:17,840 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:17,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-27 01:39:17,840 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:17,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:17,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1433056086, now seen corresponding path program 27 times [2020-10-27 01:39:17,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:17,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159356389] [2020-10-27 01:39:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:18,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-27 01:39:20,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:20,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2290 [2020-10-27 01:39:20,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 01:39:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:39:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-27 01:39:20,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:39:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:39:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:39:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:39:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:39:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:39:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:39:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:39:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:39:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:39:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:39:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:39:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:39:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:39:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:20,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:20,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:20,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:20,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:20,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:20,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:20,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:20,525 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 238 proven. 392 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-27 01:39:20,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159356389] [2020-10-27 01:39:20,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:20,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 01:39:20,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122107681] [2020-10-27 01:39:20,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 01:39:20,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:20,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 01:39:20,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=238, Unknown=0, NotChecked=0, Total=380 [2020-10-27 01:39:20,527 INFO L87 Difference]: Start difference. First operand 163 states and 166 transitions. Second operand 20 states. [2020-10-27 01:39:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:21,574 INFO L93 Difference]: Finished difference Result 176 states and 179 transitions. [2020-10-27 01:39:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 01:39:21,575 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 160 [2020-10-27 01:39:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:21,577 INFO L225 Difference]: With dead ends: 176 [2020-10-27 01:39:21,577 INFO L226 Difference]: Without dead ends: 172 [2020-10-27 01:39:21,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=422, Invalid=910, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 01:39:21,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-27 01:39:21,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2020-10-27 01:39:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-27 01:39:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 174 transitions. [2020-10-27 01:39:21,593 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 174 transitions. Word has length 160 [2020-10-27 01:39:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:21,593 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 174 transitions. [2020-10-27 01:39:21,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 01:39:21,594 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 174 transitions. [2020-10-27 01:39:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-27 01:39:21,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:21,595 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:21,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-27 01:39:21,595 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:21,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1716544318, now seen corresponding path program 28 times [2020-10-27 01:39:21,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:21,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692519704] [2020-10-27 01:39:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:21,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:22,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:22,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:22,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-27 01:39:22,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:22,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 987 [2020-10-27 01:39:22,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 01:39:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:39:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-27 01:39:22,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:23,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:39:23,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:23,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:23,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:39:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:23,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:39:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:39:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:39:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:39:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:39:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:39:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:23,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:39:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:39:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:39:23,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:39:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:23,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:39:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:39:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:23,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:39:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:39:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:39:23,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:39:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:23,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:23,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:23,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:23,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:23,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:23,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:39:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:23,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 478 proven. 210 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2020-10-27 01:39:23,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692519704] [2020-10-27 01:39:23,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:23,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-27 01:39:23,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667586511] [2020-10-27 01:39:23,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-27 01:39:23,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:23,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-27 01:39:23,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 01:39:23,464 INFO L87 Difference]: Start difference. First operand 171 states and 174 transitions. Second operand 33 states. [2020-10-27 01:39:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:25,641 INFO L93 Difference]: Finished difference Result 308 states and 356 transitions. [2020-10-27 01:39:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 01:39:25,642 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 168 [2020-10-27 01:39:25,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:25,645 INFO L225 Difference]: With dead ends: 308 [2020-10-27 01:39:25,645 INFO L226 Difference]: Without dead ends: 233 [2020-10-27 01:39:25,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1053, Invalid=2853, Unknown=0, NotChecked=0, Total=3906 [2020-10-27 01:39:25,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-27 01:39:25,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 173. [2020-10-27 01:39:25,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-27 01:39:25,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 176 transitions. [2020-10-27 01:39:25,664 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 176 transitions. Word has length 168 [2020-10-27 01:39:25,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:25,664 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 176 transitions. [2020-10-27 01:39:25,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-27 01:39:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 176 transitions. [2020-10-27 01:39:25,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-27 01:39:25,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:25,665 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:25,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-27 01:39:25,666 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:25,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:25,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1458055875, now seen corresponding path program 29 times [2020-10-27 01:39:25,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:25,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141819754] [2020-10-27 01:39:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:25,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:26,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3194 [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-27 01:39:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:29,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:29,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:39:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:39:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:39:29,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:39:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:39:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:29,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:39:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:39:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:29,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:39:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:39:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:39:29,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:39:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:39:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:29,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:39:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:29,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:39:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:39:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:39:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:29,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:39:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:29,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:29,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:29,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:29,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:29,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:29,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:29,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 270 proven. 450 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-27 01:39:29,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141819754] [2020-10-27 01:39:29,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:29,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 01:39:29,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378938745] [2020-10-27 01:39:29,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 01:39:29,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:29,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 01:39:29,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=261, Unknown=0, NotChecked=0, Total=420 [2020-10-27 01:39:29,351 INFO L87 Difference]: Start difference. First operand 173 states and 176 transitions. Second operand 21 states. [2020-10-27 01:39:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:30,532 INFO L93 Difference]: Finished difference Result 186 states and 189 transitions. [2020-10-27 01:39:30,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 01:39:30,534 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 170 [2020-10-27 01:39:30,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:30,535 INFO L225 Difference]: With dead ends: 186 [2020-10-27 01:39:30,536 INFO L226 Difference]: Without dead ends: 182 [2020-10-27 01:39:30,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=473, Invalid=1009, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 01:39:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-27 01:39:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2020-10-27 01:39:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-27 01:39:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-10-27 01:39:30,557 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 170 [2020-10-27 01:39:30,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:30,558 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-10-27 01:39:30,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 01:39:30,558 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-10-27 01:39:30,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-27 01:39:30,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:30,559 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:30,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-27 01:39:30,561 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:30,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:30,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1939085399, now seen corresponding path program 30 times [2020-10-27 01:39:30,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:30,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522308098] [2020-10-27 01:39:30,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:30,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1998 [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-27 01:39:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:33,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:39:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:39:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:39:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:33,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:39:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:33,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:39:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:33,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:39:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:39:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:39:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:39:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:39:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:39:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:39:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:39:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:33,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:39:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:39:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:39:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:33,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:33,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:33,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 544 proven. 240 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-27 01:39:33,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522308098] [2020-10-27 01:39:33,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:33,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-27 01:39:33,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224011578] [2020-10-27 01:39:33,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-27 01:39:33,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:33,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-27 01:39:33,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 01:39:33,499 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 36 states. [2020-10-27 01:39:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:36,014 INFO L93 Difference]: Finished difference Result 326 states and 377 transitions. [2020-10-27 01:39:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 01:39:36,015 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 178 [2020-10-27 01:39:36,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:36,017 INFO L225 Difference]: With dead ends: 326 [2020-10-27 01:39:36,017 INFO L226 Difference]: Without dead ends: 247 [2020-10-27 01:39:36,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1205, Invalid=3351, Unknown=0, NotChecked=0, Total=4556 [2020-10-27 01:39:36,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-10-27 01:39:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 183. [2020-10-27 01:39:36,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-27 01:39:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-10-27 01:39:36,038 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 178 [2020-10-27 01:39:36,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:36,038 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-10-27 01:39:36,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-27 01:39:36,039 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-10-27 01:39:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-27 01:39:36,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:36,041 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:36,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-27 01:39:36,041 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:36,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:36,042 INFO L82 PathProgramCache]: Analyzing trace with hash -181404260, now seen corresponding path program 31 times [2020-10-27 01:39:36,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:36,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642710039] [2020-10-27 01:39:36,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:36,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:37,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-27 01:39:38,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2118 [2020-10-27 01:39:38,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 01:39:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:39:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-27 01:39:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:38,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:38,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:38,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:38,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:39:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:39:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:39:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:39:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:39:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:39:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:39:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:39:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:39:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:39:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:39:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:39:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:39:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:39:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:39:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:39:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:38,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:38,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:38,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:38,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:38,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 304 proven. 512 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-27 01:39:38,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642710039] [2020-10-27 01:39:38,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:38,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 01:39:38,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261183422] [2020-10-27 01:39:38,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 01:39:38,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:38,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 01:39:38,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=285, Unknown=0, NotChecked=0, Total=462 [2020-10-27 01:39:38,650 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 22 states. [2020-10-27 01:39:39,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:39,904 INFO L93 Difference]: Finished difference Result 196 states and 199 transitions. [2020-10-27 01:39:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 01:39:39,905 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 180 [2020-10-27 01:39:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:39,907 INFO L225 Difference]: With dead ends: 196 [2020-10-27 01:39:39,907 INFO L226 Difference]: Without dead ends: 192 [2020-10-27 01:39:39,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=527, Invalid=1113, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 01:39:39,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-27 01:39:39,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2020-10-27 01:39:39,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-27 01:39:39,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2020-10-27 01:39:39,925 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 180 [2020-10-27 01:39:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:39,925 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2020-10-27 01:39:39,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 01:39:39,925 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2020-10-27 01:39:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-27 01:39:39,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:39,927 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:39,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-27 01:39:39,927 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:39,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:39,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1410596304, now seen corresponding path program 32 times [2020-10-27 01:39:39,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:39,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954849056] [2020-10-27 01:39:39,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:39,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:41,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:41,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-27 01:39:41,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1760 [2020-10-27 01:39:41,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 01:39:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:39:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-27 01:39:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:39:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:39:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:39:42,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:39:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:39:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:39:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:39:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:39:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:39:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:39:42,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:39:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:39:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:39:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:39:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:39:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:39:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:39:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:39:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:39:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:39:42,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:39:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:42,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:42,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:42,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:42,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:42,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:42,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 612 proven. 272 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-27 01:39:42,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954849056] [2020-10-27 01:39:42,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:42,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-27 01:39:42,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583907014] [2020-10-27 01:39:42,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-27 01:39:42,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:42,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-27 01:39:42,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1044, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 01:39:42,798 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 38 states. [2020-10-27 01:39:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:45,374 INFO L93 Difference]: Finished difference Result 344 states and 398 transitions. [2020-10-27 01:39:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-27 01:39:45,375 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 188 [2020-10-27 01:39:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:45,377 INFO L225 Difference]: With dead ends: 344 [2020-10-27 01:39:45,378 INFO L226 Difference]: Without dead ends: 261 [2020-10-27 01:39:45,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1154 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1348, Invalid=3764, Unknown=0, NotChecked=0, Total=5112 [2020-10-27 01:39:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-27 01:39:45,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 193. [2020-10-27 01:39:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-27 01:39:45,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 196 transitions. [2020-10-27 01:39:45,402 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 196 transitions. Word has length 188 [2020-10-27 01:39:45,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:45,403 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 196 transitions. [2020-10-27 01:39:45,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-27 01:39:45,403 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 196 transitions. [2020-10-27 01:39:45,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-27 01:39:45,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:45,404 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:45,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-27 01:39:45,404 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:45,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:45,405 INFO L82 PathProgramCache]: Analyzing trace with hash -581839563, now seen corresponding path program 33 times [2020-10-27 01:39:45,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:45,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978976287] [2020-10-27 01:39:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:45,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:46,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-27 01:39:49,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3831 [2020-10-27 01:39:49,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 01:39:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:39:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-27 01:39:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:49,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:49,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:49,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:39:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:49,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:39:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:39:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:49,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:39:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:49,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:39:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:49,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:39:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:39:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:39:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:39:49,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:39:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:39:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:39:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:39:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:39:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:39:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:49,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:39:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:39:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:39:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:49,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:49,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:49,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:49,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:49,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:49,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 306 proven. 612 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-27 01:39:49,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978976287] [2020-10-27 01:39:49,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:49,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-27 01:39:49,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969216181] [2020-10-27 01:39:49,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-27 01:39:49,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:49,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-27 01:39:49,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=353, Unknown=0, NotChecked=0, Total=552 [2020-10-27 01:39:49,798 INFO L87 Difference]: Start difference. First operand 193 states and 196 transitions. Second operand 24 states. [2020-10-27 01:39:51,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:51,246 INFO L93 Difference]: Finished difference Result 206 states and 209 transitions. [2020-10-27 01:39:51,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 01:39:51,247 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 190 [2020-10-27 01:39:51,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:51,249 INFO L225 Difference]: With dead ends: 206 [2020-10-27 01:39:51,249 INFO L226 Difference]: Without dead ends: 202 [2020-10-27 01:39:51,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=598, Invalid=1472, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 01:39:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-27 01:39:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2020-10-27 01:39:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-27 01:39:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 204 transitions. [2020-10-27 01:39:51,268 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 204 transitions. Word has length 190 [2020-10-27 01:39:51,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:51,268 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 204 transitions. [2020-10-27 01:39:51,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-27 01:39:51,268 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 204 transitions. [2020-10-27 01:39:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-27 01:39:51,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:51,270 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:51,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-27 01:39:51,270 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:51,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:51,271 INFO L82 PathProgramCache]: Analyzing trace with hash -114478903, now seen corresponding path program 34 times [2020-10-27 01:39:51,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:51,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829547064] [2020-10-27 01:39:51,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:51,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:52,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2143 [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-10-27 01:39:53,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:39:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:39:54,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:54,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:54,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:39:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:39:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:39:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:39:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:39:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:39:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:54,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:39:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:39:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:54,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:39:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:39:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:39:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:39:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:39:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:39:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:39:54,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:39:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:39:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:39:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:39:54,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:39:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:54,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:54,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:39:54,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:39:54,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:39:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 01:39:54,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:39:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:39:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:39:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:39:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:39:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1602 backedges. 682 proven. 306 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2020-10-27 01:39:54,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829547064] [2020-10-27 01:39:54,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:39:54,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-27 01:39:54,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122099018] [2020-10-27 01:39:54,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-27 01:39:54,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:39:54,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-27 01:39:54,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=1101, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 01:39:54,476 INFO L87 Difference]: Start difference. First operand 201 states and 204 transitions. Second operand 39 states. [2020-10-27 01:39:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:39:57,406 INFO L93 Difference]: Finished difference Result 362 states and 419 transitions. [2020-10-27 01:39:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-27 01:39:57,407 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 198 [2020-10-27 01:39:57,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:39:57,409 INFO L225 Difference]: With dead ends: 362 [2020-10-27 01:39:57,410 INFO L226 Difference]: Without dead ends: 275 [2020-10-27 01:39:57,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1241 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1479, Invalid=4071, Unknown=0, NotChecked=0, Total=5550 [2020-10-27 01:39:57,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-27 01:39:57,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 203. [2020-10-27 01:39:57,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-27 01:39:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 206 transitions. [2020-10-27 01:39:57,429 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 206 transitions. Word has length 198 [2020-10-27 01:39:57,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:39:57,429 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 206 transitions. [2020-10-27 01:39:57,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-27 01:39:57,430 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 206 transitions. [2020-10-27 01:39:57,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-27 01:39:57,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:39:57,431 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:39:57,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-27 01:39:57,431 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:39:57,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:39:57,432 INFO L82 PathProgramCache]: Analyzing trace with hash -669073010, now seen corresponding path program 35 times [2020-10-27 01:39:57,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:39:57,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714448477] [2020-10-27 01:39:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:39:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:39:57,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:39:58,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:01,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:01,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-27 01:40:01,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:01,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4295 [2020-10-27 01:40:01,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 01:40:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:40:01,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 230 [2020-10-27 01:40:01,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:02,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:02,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:40:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:40:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:40:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:40:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:02,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:40:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:40:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:40:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:40:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:40:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:40:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:40:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:40:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:40:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:40:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:40:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:40:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:40:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:40:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:02,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:02,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:02,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:02,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:02,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:02,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 378 proven. 648 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-27 01:40:02,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714448477] [2020-10-27 01:40:02,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:02,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-27 01:40:02,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33992828] [2020-10-27 01:40:02,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-27 01:40:02,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:02,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-27 01:40:02,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=336, Unknown=0, NotChecked=0, Total=552 [2020-10-27 01:40:02,280 INFO L87 Difference]: Start difference. First operand 203 states and 206 transitions. Second operand 24 states. [2020-10-27 01:40:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:03,649 INFO L93 Difference]: Finished difference Result 216 states and 219 transitions. [2020-10-27 01:40:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 01:40:03,649 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 200 [2020-10-27 01:40:03,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:03,651 INFO L225 Difference]: With dead ends: 216 [2020-10-27 01:40:03,651 INFO L226 Difference]: Without dead ends: 212 [2020-10-27 01:40:03,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=644, Invalid=1336, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 01:40:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-27 01:40:03,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2020-10-27 01:40:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-27 01:40:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 214 transitions. [2020-10-27 01:40:03,677 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 214 transitions. Word has length 200 [2020-10-27 01:40:03,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:03,680 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 214 transitions. [2020-10-27 01:40:03,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-27 01:40:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 214 transitions. [2020-10-27 01:40:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-27 01:40:03,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:03,683 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:03,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-27 01:40:03,683 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:03,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:03,684 INFO L82 PathProgramCache]: Analyzing trace with hash 169391138, now seen corresponding path program 36 times [2020-10-27 01:40:03,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:03,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537939339] [2020-10-27 01:40:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:04,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:07,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3287 [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 230 [2020-10-27 01:40:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:08,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:08,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:08,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:08,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:40:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:40:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:40:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:40:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:40:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:40:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:40:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:40:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:40:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:40:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:40:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:40:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:40:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:40:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:40:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:08,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:40:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:40:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:40:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:08,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 01:40:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:08,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:08,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:08,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:08,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:08,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:08,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 760 proven. 342 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-27 01:40:08,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537939339] [2020-10-27 01:40:08,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:08,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-27 01:40:08,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292444803] [2020-10-27 01:40:08,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-27 01:40:08,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:08,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-27 01:40:08,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=442, Invalid=1280, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 01:40:08,268 INFO L87 Difference]: Start difference. First operand 211 states and 214 transitions. Second operand 42 states. [2020-10-27 01:40:11,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:11,267 INFO L93 Difference]: Finished difference Result 380 states and 440 transitions. [2020-10-27 01:40:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-27 01:40:11,268 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 208 [2020-10-27 01:40:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:11,270 INFO L225 Difference]: With dead ends: 380 [2020-10-27 01:40:11,271 INFO L226 Difference]: Without dead ends: 289 [2020-10-27 01:40:11,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1442 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1658, Invalid=4662, Unknown=0, NotChecked=0, Total=6320 [2020-10-27 01:40:11,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-10-27 01:40:11,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 213. [2020-10-27 01:40:11,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-10-27 01:40:11,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 216 transitions. [2020-10-27 01:40:11,297 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 216 transitions. Word has length 208 [2020-10-27 01:40:11,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:11,298 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 216 transitions. [2020-10-27 01:40:11,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-27 01:40:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 216 transitions. [2020-10-27 01:40:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-27 01:40:11,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:11,299 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:11,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-27 01:40:11,300 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:11,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:11,300 INFO L82 PathProgramCache]: Analyzing trace with hash -397159769, now seen corresponding path program 37 times [2020-10-27 01:40:11,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:11,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163785195] [2020-10-27 01:40:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:11,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:12,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:14,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:14,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-27 01:40:14,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:14,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3355 [2020-10-27 01:40:14,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 01:40:14,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:40:14,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-27 01:40:14,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:15,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:15,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:40:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:40:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:40:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:40:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:40:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:40:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:40:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:40:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:40:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:40:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:40:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:40:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:40:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:40:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:40:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:40:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-27 01:40:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-27 01:40:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-27 01:40:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:15,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:15,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:15,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:15,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:15,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:15,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:15,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:15,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 418 proven. 722 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-27 01:40:15,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163785195] [2020-10-27 01:40:15,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:15,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 01:40:15,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292730971] [2020-10-27 01:40:15,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 01:40:15,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:15,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 01:40:15,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=363, Unknown=0, NotChecked=0, Total=600 [2020-10-27 01:40:15,291 INFO L87 Difference]: Start difference. First operand 213 states and 216 transitions. Second operand 25 states. [2020-10-27 01:40:16,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:16,763 INFO L93 Difference]: Finished difference Result 226 states and 229 transitions. [2020-10-27 01:40:16,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 01:40:16,764 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 210 [2020-10-27 01:40:16,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:16,766 INFO L225 Difference]: With dead ends: 226 [2020-10-27 01:40:16,766 INFO L226 Difference]: Without dead ends: 222 [2020-10-27 01:40:16,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=712, Invalid=1544, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 01:40:16,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-27 01:40:16,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 221. [2020-10-27 01:40:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-27 01:40:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 224 transitions. [2020-10-27 01:40:16,791 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 224 transitions. Word has length 210 [2020-10-27 01:40:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:16,792 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 224 transitions. [2020-10-27 01:40:16,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 01:40:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 224 transitions. [2020-10-27 01:40:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-27 01:40:16,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:16,794 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:16,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-27 01:40:16,794 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:16,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:16,794 INFO L82 PathProgramCache]: Analyzing trace with hash 458988603, now seen corresponding path program 38 times [2020-10-27 01:40:16,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:16,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61297075] [2020-10-27 01:40:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:16,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:19,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2362 [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-27 01:40:19,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:40:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:40:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:40:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:20,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:40:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:40:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:20,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:40:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:40:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:40:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:40:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:40:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:40:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:40:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:20,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:40:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:40:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:40:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:40:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:20,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-27 01:40:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-27 01:40:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-27 01:40:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 01:40:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:20,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:20,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:20,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:20,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:20,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 840 proven. 380 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-27 01:40:20,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61297075] [2020-10-27 01:40:20,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:20,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-27 01:40:20,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277224494] [2020-10-27 01:40:20,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-27 01:40:20,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:20,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-27 01:40:20,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=485, Invalid=1407, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 01:40:20,496 INFO L87 Difference]: Start difference. First operand 221 states and 224 transitions. Second operand 44 states. [2020-10-27 01:40:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:23,949 INFO L93 Difference]: Finished difference Result 398 states and 461 transitions. [2020-10-27 01:40:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-27 01:40:23,950 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 218 [2020-10-27 01:40:23,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:23,953 INFO L225 Difference]: With dead ends: 398 [2020-10-27 01:40:23,954 INFO L226 Difference]: Without dead ends: 303 [2020-10-27 01:40:23,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1825, Invalid=5147, Unknown=0, NotChecked=0, Total=6972 [2020-10-27 01:40:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-27 01:40:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 223. [2020-10-27 01:40:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-27 01:40:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 226 transitions. [2020-10-27 01:40:23,975 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 226 transitions. Word has length 218 [2020-10-27 01:40:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:23,975 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 226 transitions. [2020-10-27 01:40:23,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-27 01:40:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 226 transitions. [2020-10-27 01:40:23,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-27 01:40:23,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:23,977 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:23,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-27 01:40:23,977 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:23,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash -744875904, now seen corresponding path program 39 times [2020-10-27 01:40:23,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:23,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120726162] [2020-10-27 01:40:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:24,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:25,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-27 01:40:28,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:28,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4326 [2020-10-27 01:40:28,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-27 01:40:28,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:40:28,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 254 [2020-10-27 01:40:28,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:28,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:40:28,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:28,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:28,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:40:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:28,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:40:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:40:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:40:28,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:40:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:40:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:40:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:40:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:40:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:40:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:40:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:40:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:40:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:40:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:40:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:40:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:40:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 01:40:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-27 01:40:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-27 01:40:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:28,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-27 01:40:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:28,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:28,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:28,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:28,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 460 proven. 800 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-27 01:40:28,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120726162] [2020-10-27 01:40:28,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:28,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 01:40:28,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593627338] [2020-10-27 01:40:28,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 01:40:28,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:28,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 01:40:28,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=391, Unknown=0, NotChecked=0, Total=650 [2020-10-27 01:40:28,993 INFO L87 Difference]: Start difference. First operand 223 states and 226 transitions. Second operand 26 states. [2020-10-27 01:40:30,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:30,546 INFO L93 Difference]: Finished difference Result 236 states and 239 transitions. [2020-10-27 01:40:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 01:40:30,547 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 220 [2020-10-27 01:40:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:30,550 INFO L225 Difference]: With dead ends: 236 [2020-10-27 01:40:30,550 INFO L226 Difference]: Without dead ends: 232 [2020-10-27 01:40:30,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=778, Invalid=1672, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 01:40:30,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-27 01:40:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 231. [2020-10-27 01:40:30,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-27 01:40:30,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 234 transitions. [2020-10-27 01:40:30,569 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 234 transitions. Word has length 220 [2020-10-27 01:40:30,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:30,569 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 234 transitions. [2020-10-27 01:40:30,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 01:40:30,570 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 234 transitions. [2020-10-27 01:40:30,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-27 01:40:30,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:30,571 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:30,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-27 01:40:30,571 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:30,572 INFO L82 PathProgramCache]: Analyzing trace with hash -2138113772, now seen corresponding path program 40 times [2020-10-27 01:40:30,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:30,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134116911] [2020-10-27 01:40:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:30,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:31,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:33,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3310 [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-27 01:40:33,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:35,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:35,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:40:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:40:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:40:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:40:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:40:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:40:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:40:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:40:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:40:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:40:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:40:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:40:35,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:40:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:40:35,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:40:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:40:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:40:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:40:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 01:40:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-27 01:40:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-27 01:40:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-27 01:40:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:35,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:35,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-27 01:40:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:35,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:35,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:35,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:35,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:35,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2184 backedges. 922 proven. 420 refuted. 0 times theorem prover too weak. 842 trivial. 0 not checked. [2020-10-27 01:40:35,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134116911] [2020-10-27 01:40:35,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:35,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-27 01:40:35,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147312559] [2020-10-27 01:40:35,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-27 01:40:35,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:35,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-27 01:40:35,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=1473, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 01:40:35,368 INFO L87 Difference]: Start difference. First operand 231 states and 234 transitions. Second operand 45 states. [2020-10-27 01:40:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:39,215 INFO L93 Difference]: Finished difference Result 416 states and 482 transitions. [2020-10-27 01:40:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-27 01:40:39,216 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 228 [2020-10-27 01:40:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:39,219 INFO L225 Difference]: With dead ends: 416 [2020-10-27 01:40:39,219 INFO L226 Difference]: Without dead ends: 317 [2020-10-27 01:40:39,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1977, Invalid=5505, Unknown=0, NotChecked=0, Total=7482 [2020-10-27 01:40:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-27 01:40:39,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 233. [2020-10-27 01:40:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-27 01:40:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 236 transitions. [2020-10-27 01:40:39,241 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 236 transitions. Word has length 228 [2020-10-27 01:40:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:39,242 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 236 transitions. [2020-10-27 01:40:39,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-27 01:40:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 236 transitions. [2020-10-27 01:40:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-27 01:40:39,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:39,243 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:39,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-27 01:40:39,244 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:39,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1803985689, now seen corresponding path program 41 times [2020-10-27 01:40:39,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:39,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727101514] [2020-10-27 01:40:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:39,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:40,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4833 [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-27 01:40:44,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:44,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:40:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:40:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:40:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:40:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:40:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:40:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:40:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:40:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:40:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:40:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:40:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:40:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:40:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:40:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:40:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:44,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:40:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:40:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 01:40:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:44,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-27 01:40:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-27 01:40:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-27 01:40:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:44,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:44,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:44,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:44,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:44,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:44,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:44,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:44,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2226 backedges. 504 proven. 882 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-27 01:40:44,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727101514] [2020-10-27 01:40:44,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:44,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-27 01:40:44,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386169517] [2020-10-27 01:40:44,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-27 01:40:44,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:44,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-27 01:40:44,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=420, Unknown=0, NotChecked=0, Total=702 [2020-10-27 01:40:44,824 INFO L87 Difference]: Start difference. First operand 233 states and 236 transitions. Second operand 27 states. [2020-10-27 01:40:46,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:46,487 INFO L93 Difference]: Finished difference Result 246 states and 249 transitions. [2020-10-27 01:40:46,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 01:40:46,487 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 230 [2020-10-27 01:40:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:46,490 INFO L225 Difference]: With dead ends: 246 [2020-10-27 01:40:46,490 INFO L226 Difference]: Without dead ends: 242 [2020-10-27 01:40:46,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=842, Invalid=1708, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 01:40:46,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-27 01:40:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2020-10-27 01:40:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-27 01:40:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 244 transitions. [2020-10-27 01:40:46,512 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 244 transitions. Word has length 230 [2020-10-27 01:40:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:46,512 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 244 transitions. [2020-10-27 01:40:46,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-27 01:40:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 244 transitions. [2020-10-27 01:40:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-27 01:40:46,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:46,514 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:46,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-27 01:40:46,514 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:46,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:46,515 INFO L82 PathProgramCache]: Analyzing trace with hash -315106643, now seen corresponding path program 42 times [2020-10-27 01:40:46,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:46,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403085688] [2020-10-27 01:40:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:46,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3393 [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:40:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-27 01:40:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:40:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:40:51,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:40:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:40:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:40:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:40:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:40:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:40:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:40:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:40:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:40:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:40:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:40:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:40:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:40:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:40:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:40:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:40:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:40:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 01:40:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-27 01:40:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-27 01:40:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-27 01:40:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-27 01:40:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:51,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:51,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:40:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:40:51,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 1012 proven. 462 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-10-27 01:40:51,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403085688] [2020-10-27 01:40:51,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:40:51,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-27 01:40:51,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009621441] [2020-10-27 01:40:51,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-27 01:40:51,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:40:51,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-27 01:40:51,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=577, Invalid=1679, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 01:40:51,534 INFO L87 Difference]: Start difference. First operand 241 states and 244 transitions. Second operand 48 states. [2020-10-27 01:40:55,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:40:55,734 INFO L93 Difference]: Finished difference Result 434 states and 503 transitions. [2020-10-27 01:40:55,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-27 01:40:55,735 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 238 [2020-10-27 01:40:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:40:55,738 INFO L225 Difference]: With dead ends: 434 [2020-10-27 01:40:55,738 INFO L226 Difference]: Without dead ends: 331 [2020-10-27 01:40:55,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1934 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2183, Invalid=6189, Unknown=0, NotChecked=0, Total=8372 [2020-10-27 01:40:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-10-27 01:40:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 243. [2020-10-27 01:40:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-27 01:40:55,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 246 transitions. [2020-10-27 01:40:55,763 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 246 transitions. Word has length 238 [2020-10-27 01:40:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:40:55,763 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 246 transitions. [2020-10-27 01:40:55,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-27 01:40:55,763 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 246 transitions. [2020-10-27 01:40:55,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-27 01:40:55,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:40:55,765 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:40:55,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-27 01:40:55,766 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:40:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:40:55,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1768258958, now seen corresponding path program 43 times [2020-10-27 01:40:55,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:40:55,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335693604] [2020-10-27 01:40:55,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:40:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:40:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:40:57,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:00,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4972 [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-27 01:41:00,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:41:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:41:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:41:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:41:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:41:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:41:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:41:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:41:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:41:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:41:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:41:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:41:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:41:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:41:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:41:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:41:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:41:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:41:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 01:41:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-27 01:41:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-27 01:41:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-27 01:41:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-27 01:41:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:01,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2442 backedges. 550 proven. 968 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-10-27 01:41:01,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335693604] [2020-10-27 01:41:01,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:41:01,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 01:41:01,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946953852] [2020-10-27 01:41:01,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 01:41:01,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:41:01,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 01:41:01,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=450, Unknown=0, NotChecked=0, Total=756 [2020-10-27 01:41:01,488 INFO L87 Difference]: Start difference. First operand 243 states and 246 transitions. Second operand 28 states. [2020-10-27 01:41:03,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:41:03,256 INFO L93 Difference]: Finished difference Result 256 states and 259 transitions. [2020-10-27 01:41:03,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 01:41:03,256 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 240 [2020-10-27 01:41:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:41:03,258 INFO L225 Difference]: With dead ends: 256 [2020-10-27 01:41:03,259 INFO L226 Difference]: Without dead ends: 252 [2020-10-27 01:41:03,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=914, Invalid=1842, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 01:41:03,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-27 01:41:03,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2020-10-27 01:41:03,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-27 01:41:03,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 254 transitions. [2020-10-27 01:41:03,280 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 254 transitions. Word has length 240 [2020-10-27 01:41:03,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:41:03,280 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 254 transitions. [2020-10-27 01:41:03,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 01:41:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 254 transitions. [2020-10-27 01:41:03,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-27 01:41:03,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:41:03,282 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:41:03,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-27 01:41:03,282 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:41:03,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:41:03,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2110214406, now seen corresponding path program 44 times [2020-10-27 01:41:03,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:41:03,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325719856] [2020-10-27 01:41:03,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:41:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:03,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:05,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:06,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3101 [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-27 01:41:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:41:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:41:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:41:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:07,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:41:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:07,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:41:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:41:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:07,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:07,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:41:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:07,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:07,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:41:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:07,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:07,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:41:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:07,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:41:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:41:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:41:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:41:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:41:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:41:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:41:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:41:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:41:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 01:41:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-27 01:41:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-27 01:41:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-27 01:41:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-27 01:41:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-27 01:41:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:08,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:08,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:08,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:08,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:08,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:08,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2622 backedges. 1104 proven. 506 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-10-27 01:41:08,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325719856] [2020-10-27 01:41:08,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:41:08,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-27 01:41:08,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293406421] [2020-10-27 01:41:08,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-27 01:41:08,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:41:08,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-27 01:41:08,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=626, Invalid=1824, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 01:41:08,129 INFO L87 Difference]: Start difference. First operand 251 states and 254 transitions. Second operand 50 states. [2020-10-27 01:41:12,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:41:12,141 INFO L93 Difference]: Finished difference Result 452 states and 524 transitions. [2020-10-27 01:41:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-27 01:41:12,141 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 248 [2020-10-27 01:41:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:41:12,144 INFO L225 Difference]: With dead ends: 452 [2020-10-27 01:41:12,144 INFO L226 Difference]: Without dead ends: 345 [2020-10-27 01:41:12,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2114 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2374, Invalid=6746, Unknown=0, NotChecked=0, Total=9120 [2020-10-27 01:41:12,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-27 01:41:12,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 253. [2020-10-27 01:41:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-27 01:41:12,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 256 transitions. [2020-10-27 01:41:12,166 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 256 transitions. Word has length 248 [2020-10-27 01:41:12,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:41:12,166 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 256 transitions. [2020-10-27 01:41:12,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-27 01:41:12,166 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 256 transitions. [2020-10-27 01:41:12,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-27 01:41:12,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:41:12,168 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:41:12,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-27 01:41:12,168 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:41:12,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:41:12,169 INFO L82 PathProgramCache]: Analyzing trace with hash 423806603, now seen corresponding path program 45 times [2020-10-27 01:41:12,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:41:12,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612958034] [2020-10-27 01:41:12,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:41:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:16,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:16,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-27 01:41:16,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:41:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4729 [2020-10-27 01:41:16,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 01:41:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:41:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 290 [2020-10-27 01:41:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:41:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:41:17,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:41:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:41:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:41:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:41:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:41:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:41:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:41:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:41:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:41:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:41:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:41:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:41:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:41:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:41:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:41:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-27 01:41:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-27 01:41:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-27 01:41:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 01:41:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-27 01:41:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-27 01:41:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-27 01:41:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-27 01:41:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:17,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:17,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:17,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:17,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:17,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 598 proven. 1058 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-10-27 01:41:17,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612958034] [2020-10-27 01:41:17,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:41:17,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-27 01:41:17,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827059583] [2020-10-27 01:41:17,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-27 01:41:17,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:41:17,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-27 01:41:17,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=481, Unknown=0, NotChecked=0, Total=812 [2020-10-27 01:41:17,707 INFO L87 Difference]: Start difference. First operand 253 states and 256 transitions. Second operand 29 states. [2020-10-27 01:41:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:41:19,514 INFO L93 Difference]: Finished difference Result 266 states and 269 transitions. [2020-10-27 01:41:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 01:41:19,515 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 250 [2020-10-27 01:41:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:41:19,517 INFO L225 Difference]: With dead ends: 266 [2020-10-27 01:41:19,517 INFO L226 Difference]: Without dead ends: 262 [2020-10-27 01:41:19,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=989, Invalid=1981, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 01:41:19,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-27 01:41:19,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 261. [2020-10-27 01:41:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-27 01:41:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 264 transitions. [2020-10-27 01:41:19,538 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 264 transitions. Word has length 250 [2020-10-27 01:41:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:41:19,539 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 264 transitions. [2020-10-27 01:41:19,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-27 01:41:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 264 transitions. [2020-10-27 01:41:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-27 01:41:19,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:41:19,541 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:41:19,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-27 01:41:19,541 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:41:19,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:41:19,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2137363425, now seen corresponding path program 46 times [2020-10-27 01:41:19,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:41:19,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21810741] [2020-10-27 01:41:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:41:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:19,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:21,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3816 [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 280 [2020-10-27 01:41:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:41:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:41:25,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:25,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:41:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:41:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:41:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:41:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:41:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:41:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:41:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:41:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:41:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:41:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:41:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:41:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:41:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:41:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:41:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-27 01:41:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-27 01:41:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-27 01:41:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 01:41:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-27 01:41:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-27 01:41:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-27 01:41:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-27 01:41:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-27 01:41:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:25,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:25,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:25,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:25,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 01:41:25,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:41:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:25,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 1198 proven. 552 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2020-10-27 01:41:25,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21810741] [2020-10-27 01:41:25,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:41:25,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2020-10-27 01:41:25,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806572995] [2020-10-27 01:41:25,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-10-27 01:41:25,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:41:25,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-10-27 01:41:25,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 01:41:25,187 INFO L87 Difference]: Start difference. First operand 261 states and 264 transitions. Second operand 51 states. [2020-10-27 01:41:29,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:41:29,820 INFO L93 Difference]: Finished difference Result 470 states and 545 transitions. [2020-10-27 01:41:29,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-27 01:41:29,821 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 258 [2020-10-27 01:41:29,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:41:29,823 INFO L225 Difference]: With dead ends: 470 [2020-10-27 01:41:29,823 INFO L226 Difference]: Without dead ends: 359 [2020-10-27 01:41:29,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2231 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2547, Invalid=7155, Unknown=0, NotChecked=0, Total=9702 [2020-10-27 01:41:29,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-10-27 01:41:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 263. [2020-10-27 01:41:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-27 01:41:29,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 266 transitions. [2020-10-27 01:41:29,851 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 266 transitions. Word has length 258 [2020-10-27 01:41:29,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:41:29,851 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 266 transitions. [2020-10-27 01:41:29,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-10-27 01:41:29,852 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 266 transitions. [2020-10-27 01:41:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-27 01:41:29,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:41:29,853 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:41:29,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-27 01:41:29,854 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:41:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:41:29,854 INFO L82 PathProgramCache]: Analyzing trace with hash 517504868, now seen corresponding path program 47 times [2020-10-27 01:41:29,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:41:29,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135873792] [2020-10-27 01:41:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:41:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:29,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:34,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:34,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-27 01:41:34,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:41:34,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-27 01:41:34,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-27 01:41:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:41:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 302 [2020-10-27 01:41:34,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:41:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:35,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:41:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:41:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:41:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:41:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:41:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:41:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:41:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:41:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:41:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:41:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:41:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:41:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:41:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:41:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:41:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 01:41:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-27 01:41:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-27 01:41:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-27 01:41:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-27 01:41:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 01:41:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-27 01:41:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:41:35,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-27 01:41:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-27 01:41:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:35,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:35,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:35,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:35,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:35,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:35,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:35,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:35,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2904 backedges. 648 proven. 1152 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-27 01:41:35,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135873792] [2020-10-27 01:41:35,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:41:35,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 01:41:35,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886099780] [2020-10-27 01:41:35,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 01:41:35,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:41:35,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 01:41:35,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=513, Unknown=0, NotChecked=0, Total=870 [2020-10-27 01:41:35,793 INFO L87 Difference]: Start difference. First operand 263 states and 266 transitions. Second operand 30 states. [2020-10-27 01:41:37,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:41:37,752 INFO L93 Difference]: Finished difference Result 276 states and 279 transitions. [2020-10-27 01:41:37,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-27 01:41:37,752 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 260 [2020-10-27 01:41:37,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:41:37,755 INFO L225 Difference]: With dead ends: 276 [2020-10-27 01:41:37,755 INFO L226 Difference]: Without dead ends: 272 [2020-10-27 01:41:37,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1072, Invalid=2234, Unknown=0, NotChecked=0, Total=3306 [2020-10-27 01:41:37,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-27 01:41:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2020-10-27 01:41:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-27 01:41:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 274 transitions. [2020-10-27 01:41:37,779 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 274 transitions. Word has length 260 [2020-10-27 01:41:37,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:41:37,779 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 274 transitions. [2020-10-27 01:41:37,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 01:41:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 274 transitions. [2020-10-27 01:41:37,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-27 01:41:37,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:41:37,781 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:41:37,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-27 01:41:37,782 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:41:37,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:41:37,782 INFO L82 PathProgramCache]: Analyzing trace with hash -17155080, now seen corresponding path program 48 times [2020-10-27 01:41:37,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:41:37,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871785858] [2020-10-27 01:41:37,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:41:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:37,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:40,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3712 [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 01:41:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 292 [2020-10-27 01:41:41,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:41:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:41:43,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:41:43,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:43,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:43,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:41:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:41:43,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:41:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:41:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:41:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:41:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:41:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:41:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:41:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:41:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:41:43,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:41:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:41:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:41:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:41:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:41:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:41:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 01:41:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-27 01:41:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-27 01:41:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-27 01:41:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-27 01:41:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 01:41:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-27 01:41:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-27 01:41:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-27 01:41:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:43,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:43,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-27 01:41:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:43,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:43,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:43,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:43,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 01:41:43,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 01:41:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3100 backedges. 1298 proven. 600 refuted. 0 times theorem prover too weak. 1202 trivial. 0 not checked. [2020-10-27 01:41:43,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871785858] [2020-10-27 01:41:43,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:41:43,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2020-10-27 01:41:43,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016379462] [2020-10-27 01:41:43,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-10-27 01:41:43,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:41:43,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-10-27 01:41:43,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=2053, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 01:41:43,523 INFO L87 Difference]: Start difference. First operand 271 states and 274 transitions. Second operand 53 states. [2020-10-27 01:41:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:41:48,129 INFO L93 Difference]: Finished difference Result 488 states and 566 transitions. [2020-10-27 01:41:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-27 01:41:48,130 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 268 [2020-10-27 01:41:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:41:48,133 INFO L225 Difference]: With dead ends: 488 [2020-10-27 01:41:48,133 INFO L226 Difference]: Without dead ends: 373 [2020-10-27 01:41:48,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2424 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2753, Invalid=7753, Unknown=0, NotChecked=0, Total=10506 [2020-10-27 01:41:48,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-27 01:41:48,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 273. [2020-10-27 01:41:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-27 01:41:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 276 transitions. [2020-10-27 01:41:48,158 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 276 transitions. Word has length 268 [2020-10-27 01:41:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:41:48,158 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 276 transitions. [2020-10-27 01:41:48,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-10-27 01:41:48,158 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 276 transitions. [2020-10-27 01:41:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-27 01:41:48,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:41:48,160 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:41:48,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-27 01:41:48,160 INFO L429 AbstractCegarLoop]: === Iteration 51 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:41:48,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:41:48,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2103395075, now seen corresponding path program 49 times [2020-10-27 01:41:48,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:41:48,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1738729066] [2020-10-27 01:41:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:41:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:48,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:50,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-27 01:41:53,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:41:53,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 01:41:53,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 01:41:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:41:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 314 [2020-10-27 01:41:53,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:41:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:41:53,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:41:53,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:41:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:41:53,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:41:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:41:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:41:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:41:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:41:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:41:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:41:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:41:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:41:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:41:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:41:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:41:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:41:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:53,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:41:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:53,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:41:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:41:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 01:41:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-27 01:41:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-27 01:41:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-27 01:41:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-27 01:41:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-27 01:41:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-27 01:41:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-10-27 01:41:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-10-27 01:41:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:54,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:41:54,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:41:54,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:41:54,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:41:54,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:41:54,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:41:54,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:41:54,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:41:54,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:41:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3150 backedges. 650 proven. 1300 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-10-27 01:41:54,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1738729066] [2020-10-27 01:41:54,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:41:54,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-27 01:41:54,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688020463] [2020-10-27 01:41:54,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-27 01:41:54,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:41:54,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-27 01:41:54,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=605, Unknown=0, NotChecked=0, Total=992 [2020-10-27 01:41:54,088 INFO L87 Difference]: Start difference. First operand 273 states and 276 transitions. Second operand 32 states. [2020-10-27 01:41:56,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:41:56,257 INFO L93 Difference]: Finished difference Result 286 states and 289 transitions. [2020-10-27 01:41:56,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 01:41:56,258 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 270 [2020-10-27 01:41:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:41:56,261 INFO L225 Difference]: With dead ends: 286 [2020-10-27 01:41:56,261 INFO L226 Difference]: Without dead ends: 282 [2020-10-27 01:41:56,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1162, Invalid=2620, Unknown=0, NotChecked=0, Total=3782 [2020-10-27 01:41:56,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-27 01:41:56,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 281. [2020-10-27 01:41:56,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 01:41:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 284 transitions. [2020-10-27 01:41:56,283 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 284 transitions. Word has length 270 [2020-10-27 01:41:56,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:41:56,283 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 284 transitions. [2020-10-27 01:41:56,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-27 01:41:56,284 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 284 transitions. [2020-10-27 01:41:56,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-27 01:41:56,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:41:56,286 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:41:56,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-27 01:41:56,286 INFO L429 AbstractCegarLoop]: === Iteration 52 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:41:56,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:41:56,286 INFO L82 PathProgramCache]: Analyzing trace with hash 102486161, now seen corresponding path program 50 times [2020-10-27 01:41:56,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:41:56,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336816748] [2020-10-27 01:41:56,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:41:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:41:56,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:41:58,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking...