/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/recursive-simple/sum_25x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:09:00,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:09:00,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:09:00,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:09:00,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:09:00,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:09:00,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:09:00,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:09:00,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:09:00,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:09:00,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:09:00,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:09:00,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:09:00,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:09:00,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:09:00,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:09:00,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:09:00,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:09:00,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:09:00,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:09:00,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:09:00,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:09:00,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:09:00,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:09:00,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:09:00,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:09:00,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:09:00,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:09:00,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:09:00,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:09:00,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:09:00,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:09:00,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:09:00,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:09:00,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:09:00,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:09:00,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:09:00,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:09:00,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:09:00,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:09:00,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:09:00,191 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 04:09:00,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:09:00,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:09:00,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:09:00,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:09:00,234 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:09:00,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:09:00,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:09:00,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:09:00,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:09:00,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:09:00,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:09:00,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:09:00,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:09:00,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:09:00,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:09:00,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:09:00,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:09:00,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:09:00,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:09:00,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:09:00,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:09:00,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:09:00,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:09:00,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:09:00,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:09:00,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:09:00,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:09:00,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:09:00,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:09:00,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:09:00,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:09:00,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:09:00,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:09:00,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:09:00,646 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:09:00,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_25x0-1.c [2020-10-27 04:09:00,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c643d02c/64a4e4cbf6764d298ff31d9ca9212d10/FLAG4c0660073 [2020-10-27 04:09:01,310 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:09:01,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_25x0-1.c [2020-10-27 04:09:01,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c643d02c/64a4e4cbf6764d298ff31d9ca9212d10/FLAG4c0660073 [2020-10-27 04:09:01,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c643d02c/64a4e4cbf6764d298ff31d9ca9212d10 [2020-10-27 04:09:01,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:09:01,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:09:01,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:09:01,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:09:01,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:09:01,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788e4aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01, skipping insertion in model container [2020-10-27 04:09:01,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:09:01,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:09:01,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:09:01,905 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:09:01,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:09:01,937 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:09:01,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01 WrapperNode [2020-10-27 04:09:01,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:09:01,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:09:01,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:09:01,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:09:01,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (1/1) ... [2020-10-27 04:09:01,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:09:01,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:09:01,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:09:01,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:09:01,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (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 04:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:09:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-27 04:09:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-27 04:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:09:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:09:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:09:02,302 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:09:02,302 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 04:09:02,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:09:02 BoogieIcfgContainer [2020-10-27 04:09:02,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:09:02,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:09:02,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:09:02,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:09:02,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:09:01" (1/3) ... [2020-10-27 04:09:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173098cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:09:02, skipping insertion in model container [2020-10-27 04:09:02,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:09:01" (2/3) ... [2020-10-27 04:09:02,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173098cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:09:02, skipping insertion in model container [2020-10-27 04:09:02,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:09:02" (3/3) ... [2020-10-27 04:09:02,314 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_25x0-1.c [2020-10-27 04:09:02,327 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:09:02,332 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:09:02,344 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:09:02,384 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:09:02,385 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:09:02,385 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:09:02,385 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:09:02,385 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:09:02,385 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:09:02,385 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:09:02,385 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:09:02,403 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-27 04:09:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 04:09:02,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:02,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:02,410 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:02,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:02,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2012080153, now seen corresponding path program 1 times [2020-10-27 04:09:02,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:02,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96962242] [2020-10-27 04:09:02,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:02,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:02,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-27 04:09:03,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:09:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:09:03,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 04:09:03,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:03,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:03,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:09:03,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:03,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:03,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:03,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:03,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:03,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:03,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:09:03,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:03,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:09:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:09:03,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:03,423 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 04:09:03,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96962242] [2020-10-27 04:09:03,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:09:03,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 04:09:03,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044927826] [2020-10-27 04:09:03,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:09:03,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:03,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:09:03,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:09:03,449 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-27 04:09:03,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:03,679 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-27 04:09:03,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:09:03,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 04:09:03,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:03,691 INFO L225 Difference]: With dead ends: 36 [2020-10-27 04:09:03,691 INFO L226 Difference]: Without dead ends: 20 [2020-10-27 04:09:03,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:09:03,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-27 04:09:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-27 04:09:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-27 04:09:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-27 04:09:03,746 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-27 04:09:03,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:03,747 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-27 04:09:03,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:09:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-27 04:09:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 04:09:03,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:03,749 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:03,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:09:03,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:03,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:03,751 INFO L82 PathProgramCache]: Analyzing trace with hash -292229313, now seen corresponding path program 1 times [2020-10-27 04:09:03,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:03,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186992253] [2020-10-27 04:09:03,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:03,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:04,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:04,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:04,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:04,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-27 04:09:04,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:09:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:09:04,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 04:09:04,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:04,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:04,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:04,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:09:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:09:04,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:04,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:04,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:04,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:04,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 04:09:04,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:09:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:09:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:04,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:04,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:04,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:04,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:04,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:09:04,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:04,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:04,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 04:09:04,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186992253] [2020-10-27 04:09:04,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:04,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:09:04,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123759786] [2020-10-27 04:09:04,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:09:04,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:09:04,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:09:04,452 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-27 04:09:04,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:04,673 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-27 04:09:04,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:09:04,673 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-27 04:09:04,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:04,675 INFO L225 Difference]: With dead ends: 28 [2020-10-27 04:09:04,675 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 04:09:04,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:09:04,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 04:09:04,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 04:09:04,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 04:09:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-27 04:09:04,685 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-27 04:09:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:04,686 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-27 04:09:04,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:09:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-27 04:09:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 04:09:04,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:04,687 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:04,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:09:04,688 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:04,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1887732007, now seen corresponding path program 2 times [2020-10-27 04:09:04,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:04,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174590209] [2020-10-27 04:09:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:04,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:04,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:05,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:05,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-27 04:09:05,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:09:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:05,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:09:05,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:05,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:09:05,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:05,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:05,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 04:09:05,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:09:05,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:05,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:09:05,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:05,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 04:09:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:05,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:05,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:05,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:09:05,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:05,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:05,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 04:09:05,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174590209] [2020-10-27 04:09:05,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:05,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 04:09:05,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811678866] [2020-10-27 04:09:05,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:09:05,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:05,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:09:05,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:09:05,404 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2020-10-27 04:09:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:05,656 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-27 04:09:05,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:09:05,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-27 04:09:05,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:05,672 INFO L225 Difference]: With dead ends: 31 [2020-10-27 04:09:05,672 INFO L226 Difference]: Without dead ends: 26 [2020-10-27 04:09:05,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:09:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-27 04:09:05,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-27 04:09:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-27 04:09:05,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-27 04:09:05,682 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-27 04:09:05,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:05,682 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-27 04:09:05,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:09:05,683 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-27 04:09:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 04:09:05,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:05,684 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:05,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:09:05,685 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:05,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:05,685 INFO L82 PathProgramCache]: Analyzing trace with hash 779050623, now seen corresponding path program 3 times [2020-10-27 04:09:05,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:05,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461425264] [2020-10-27 04:09:05,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:06,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:06,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-27 04:09:06,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:09:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 04:09:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:06,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:09:06,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:06,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 04:09:06,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:09:06,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:06,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 04:09:06,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:06,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 04:09:06,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:06,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:06,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:06,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:09:06,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:06,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:06,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:09:06,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,436 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 04:09:06,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461425264] [2020-10-27 04:09:06,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:06,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 04:09:06,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107438898] [2020-10-27 04:09:06,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:09:06,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:06,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:09:06,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:09:06,439 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-10-27 04:09:06,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:06,743 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-27 04:09:06,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 04:09:06,744 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-10-27 04:09:06,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:06,746 INFO L225 Difference]: With dead ends: 34 [2020-10-27 04:09:06,746 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 04:09:06,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:09:06,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 04:09:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 04:09:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 04:09:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-27 04:09:06,755 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-27 04:09:06,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:06,755 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-27 04:09:06,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:09:06,755 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-27 04:09:06,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 04:09:06,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:06,757 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:06,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:09:06,757 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:06,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:06,758 INFO L82 PathProgramCache]: Analyzing trace with hash -184104345, now seen corresponding path program 4 times [2020-10-27 04:09:06,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:06,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181695249] [2020-10-27 04:09:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:07,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:07,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-10-27 04:09:07,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:09:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:09:07,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:07,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:09:07,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:07,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:07,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-27 04:09:07,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:09:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 04:09:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:07,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 04:09:07,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:07,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:07,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 04:09:07,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:07,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 04:09:07,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:07,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:07,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:07,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:09:07,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 04:09:07,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181695249] [2020-10-27 04:09:07,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:07,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 04:09:07,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713576444] [2020-10-27 04:09:07,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:09:07,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:07,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:09:07,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:09:07,902 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 11 states. [2020-10-27 04:09:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:08,228 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-27 04:09:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 04:09:08,229 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-10-27 04:09:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:08,230 INFO L225 Difference]: With dead ends: 37 [2020-10-27 04:09:08,231 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 04:09:08,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:09:08,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 04:09:08,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-27 04:09:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 04:09:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-27 04:09:08,239 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-27 04:09:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:08,240 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-27 04:09:08,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:09:08,240 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-27 04:09:08,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-27 04:09:08,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:08,242 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:08,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:09:08,242 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:08,243 INFO L82 PathProgramCache]: Analyzing trace with hash -6214209, now seen corresponding path program 5 times [2020-10-27 04:09:08,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:08,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545249244] [2020-10-27 04:09:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:08,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:08,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:08,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:08,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-27 04:09:08,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:09:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:08,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:08,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:08,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:08,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:08,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:08,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:09:08,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:08,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:08,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:08,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:08,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:08,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-27 04:09:08,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:09:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 04:09:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:08,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:08,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:09,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:09,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:09,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:09,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 04:09:09,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:09,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:09,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:09,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:09,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:09,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 04:09:09,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:09,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:09,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:09,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:09,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:09,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:09,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:09,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 04:09:09,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:09,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:09,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:09,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:09,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:09,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:09,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:09,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:09,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:09:09,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:09,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:09,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:09,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:09,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:09,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:09,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:09:09,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:09,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:09,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 04:09:09,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545249244] [2020-10-27 04:09:09,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:09,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 04:09:09,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561485881] [2020-10-27 04:09:09,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 04:09:09,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:09,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 04:09:09,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:09:09,397 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 12 states. [2020-10-27 04:09:09,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:09,817 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-27 04:09:09,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 04:09:09,818 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-27 04:09:09,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:09,819 INFO L225 Difference]: With dead ends: 40 [2020-10-27 04:09:09,819 INFO L226 Difference]: Without dead ends: 35 [2020-10-27 04:09:09,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:09:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-27 04:09:09,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-27 04:09:09,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 04:09:09,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-27 04:09:09,828 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-27 04:09:09,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:09,828 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-27 04:09:09,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 04:09:09,828 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-27 04:09:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 04:09:09,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:09,830 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:09,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:09:09,830 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:09,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:09,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2097613913, now seen corresponding path program 6 times [2020-10-27 04:09:09,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:09,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708177353] [2020-10-27 04:09:09,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:09,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:10,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:10,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:10,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:10,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-10-27 04:09:10,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:09:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 04:09:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:10,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:10,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:10,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:10,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:10,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:10,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:10,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:10,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:10,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:10,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:10,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:10,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:10,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:10,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-27 04:09:10,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:09:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:10,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 04:09:10,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:10,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:10,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:11,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:11,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:11,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-27 04:09:11,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:11,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:11,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:11,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:11,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 04:09:11,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:11,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:11,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:11,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:11,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:11,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:11,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 04:09:11,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:11,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:11,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:11,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:11,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:11,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:11,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:09:11,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:11,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:11,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:11,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:11,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:11,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:11,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:11,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 04:09:11,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:11,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:11,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:11,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:11,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:09:11,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:11,617 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 71 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-27 04:09:11,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708177353] [2020-10-27 04:09:11,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:11,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 04:09:11,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756452009] [2020-10-27 04:09:11,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:09:11,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:11,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:09:11,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:09:11,620 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 13 states. [2020-10-27 04:09:12,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:12,168 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-27 04:09:12,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 04:09:12,169 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-27 04:09:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:12,171 INFO L225 Difference]: With dead ends: 43 [2020-10-27 04:09:12,171 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 04:09:12,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-10-27 04:09:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 04:09:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-27 04:09:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 04:09:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-27 04:09:12,188 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-27 04:09:12,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:12,189 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-27 04:09:12,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:09:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-27 04:09:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 04:09:12,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:12,197 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:12,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:09:12,197 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:12,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:12,198 INFO L82 PathProgramCache]: Analyzing trace with hash -437625601, now seen corresponding path program 7 times [2020-10-27 04:09:12,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:12,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900613345] [2020-10-27 04:09:12,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:12,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:13,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:13,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:13,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:13,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 975 [2020-10-27 04:09:13,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:09:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 04:09:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:13,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:13,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:13,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:13,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:13,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:13,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:09:13,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:13,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:13,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:13,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:13,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:13,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:13,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:13,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:13,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:13,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:13,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-27 04:09:13,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:09:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:13,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:09:13,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:13,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:13,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:13,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:13,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:13,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:13,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-27 04:09:13,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:13,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:13,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:13,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:13,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:13,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:13,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:13,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-27 04:09:13,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:14,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:14,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:14,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:14,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-27 04:09:14,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:14,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:14,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:14,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:14,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:14,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:14,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:14,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 04:09:14,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:14,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:14,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:14,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:14,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:14,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:14,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:14,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 04:09:14,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:14,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:14,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:14,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:14,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:14,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:14,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:09:14,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:14,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:14,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:14,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:14,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:14,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:14,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:14,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:09:14,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 10 proven. 89 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-10-27 04:09:14,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900613345] [2020-10-27 04:09:14,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:14,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 04:09:14,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113938245] [2020-10-27 04:09:14,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:09:14,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:14,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:09:14,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:09:14,354 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 14 states. [2020-10-27 04:09:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:14,901 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-27 04:09:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:09:14,902 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-10-27 04:09:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:14,903 INFO L225 Difference]: With dead ends: 46 [2020-10-27 04:09:14,903 INFO L226 Difference]: Without dead ends: 41 [2020-10-27 04:09:14,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:09:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-27 04:09:14,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-27 04:09:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 04:09:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-27 04:09:14,912 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-27 04:09:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:14,912 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-27 04:09:14,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:09:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-27 04:09:14,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 04:09:14,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:14,914 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:14,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:09:14,914 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:14,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:14,915 INFO L82 PathProgramCache]: Analyzing trace with hash 331021543, now seen corresponding path program 8 times [2020-10-27 04:09:14,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:14,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677696762] [2020-10-27 04:09:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:14,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:15,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:16,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:16,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:16,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:16,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1549 [2020-10-27 04:09:16,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 04:09:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 04:09:16,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:16,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:16,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:16,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:16,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:16,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:16,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:09:16,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:16,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:16,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:16,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:16,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:16,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:16,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:16,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:16,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:16,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-27 04:09:16,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:16,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 04:09:16,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:16,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 04:09:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:16,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:16,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:17,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-27 04:09:17,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:17,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-27 04:09:17,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:17,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:17,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 04:09:17,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:17,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 04:09:17,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:17,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:17,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:17,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 04:09:17,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:17,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 04:09:17,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:17,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:17,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:09:17,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:17,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:17,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:09:17,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:17,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:09:17,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:17,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:09:18,027 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 24 proven. 112 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-27 04:09:18,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677696762] [2020-10-27 04:09:18,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:18,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 04:09:18,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393658515] [2020-10-27 04:09:18,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:09:18,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:18,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:09:18,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:09:18,036 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 15 states. [2020-10-27 04:09:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:18,687 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-27 04:09:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 04:09:18,688 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2020-10-27 04:09:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:18,692 INFO L225 Difference]: With dead ends: 49 [2020-10-27 04:09:18,692 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 04:09:18,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2020-10-27 04:09:18,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 04:09:18,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-27 04:09:18,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-27 04:09:18,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-27 04:09:18,712 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-27 04:09:18,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:18,713 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-27 04:09:18,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:09:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-27 04:09:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 04:09:18,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:18,717 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:18,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:09:18,718 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:18,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1458901953, now seen corresponding path program 9 times [2020-10-27 04:09:18,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:18,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180207679] [2020-10-27 04:09:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:20,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:20,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:20,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1491 [2020-10-27 04:09:20,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:09:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 04:09:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:20,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:20,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:20,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:09:20,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:20,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:20,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-27 04:09:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:09:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 04:09:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:20,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:20,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:20,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:20,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:20,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-27 04:09:20,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:20,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:20,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:20,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:20,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:20,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:20,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:21,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-27 04:09:21,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:21,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:21,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:21,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-27 04:09:21,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:21,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:21,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 04:09:21,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:21,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:21,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:21,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:21,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 04:09:21,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:21,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:21,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:21,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 04:09:21,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:21,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:21,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:21,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:09:21,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:21,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:21,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:21,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:21,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:09:21,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 19 proven. 152 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-27 04:09:21,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180207679] [2020-10-27 04:09:21,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:21,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 04:09:21,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024435944] [2020-10-27 04:09:21,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 04:09:21,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:21,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 04:09:21,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:09:21,941 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 16 states. [2020-10-27 04:09:22,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:22,616 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-27 04:09:22,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 04:09:22,618 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-10-27 04:09:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:22,621 INFO L225 Difference]: With dead ends: 52 [2020-10-27 04:09:22,621 INFO L226 Difference]: Without dead ends: 47 [2020-10-27 04:09:22,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2020-10-27 04:09:22,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-27 04:09:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-27 04:09:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 04:09:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-27 04:09:22,633 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-27 04:09:22,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:22,633 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-27 04:09:22,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 04:09:22,633 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-27 04:09:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 04:09:22,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:22,635 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:22,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:09:22,635 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:22,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:22,636 INFO L82 PathProgramCache]: Analyzing trace with hash 749528615, now seen corresponding path program 10 times [2020-10-27 04:09:22,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:22,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409243183] [2020-10-27 04:09:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:22,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:22,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:24,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:24,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:24,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1493 [2020-10-27 04:09:24,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 04:09:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 04:09:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:24,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:24,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:24,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:24,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:24,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:09:24,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:24,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:24,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:24,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:24,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:24,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-27 04:09:24,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 04:09:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 04:09:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:24,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:24,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:24,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:24,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:24,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:24,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-27 04:09:24,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:24,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:25,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:25,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:25,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:25,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-27 04:09:25,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:25,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:25,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:25,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:25,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:25,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:25,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:25,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-27 04:09:25,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:25,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:25,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:25,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:25,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:25,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-27 04:09:25,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:25,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:25,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 04:09:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:25,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:25,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:25,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:25,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 04:09:25,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:25,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:26,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:26,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:26,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:26,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 04:09:26,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:26,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:26,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:26,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:26,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:26,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:26,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 04:09:26,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:26,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:26,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:26,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:26,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:26,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:26,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:26,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:09:26,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:26,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:26,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:26,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:26,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:26,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:26,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:26,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:26,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:26,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:26,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:09:26,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:26,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 20 proven. 187 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-10-27 04:09:26,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409243183] [2020-10-27 04:09:26,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:26,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 04:09:26,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447147008] [2020-10-27 04:09:26,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 04:09:26,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:26,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 04:09:26,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-27 04:09:26,208 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 17 states. [2020-10-27 04:09:26,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:26,958 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-27 04:09:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:09:26,958 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 75 [2020-10-27 04:09:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:26,960 INFO L225 Difference]: With dead ends: 55 [2020-10-27 04:09:26,961 INFO L226 Difference]: Without dead ends: 50 [2020-10-27 04:09:26,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2020-10-27 04:09:26,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-27 04:09:26,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-27 04:09:26,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-27 04:09:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-27 04:09:26,969 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 75 [2020-10-27 04:09:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:26,970 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-27 04:09:26,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 04:09:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-27 04:09:26,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 04:09:26,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:26,971 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:26,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 04:09:26,971 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:26,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:26,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1422056319, now seen corresponding path program 11 times [2020-10-27 04:09:26,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:26,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487878282] [2020-10-27 04:09:26,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:26,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:27,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:28,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:28,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:28,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:28,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1332 [2020-10-27 04:09:28,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 04:09:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:09:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:28,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:28,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:28,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:28,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:28,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:28,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:28,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:28,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:28,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:28,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:28,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:28,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:28,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:28,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:28,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-27 04:09:28,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 04:09:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 04:09:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:28,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:28,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:29,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-27 04:09:29,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:29,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-27 04:09:29,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:30,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-27 04:09:30,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:30,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:30,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:30,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-27 04:09:30,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:30,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:30,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 04:09:30,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:30,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:30,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 04:09:30,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:30,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:30,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:09:30,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:30,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:30,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:30,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 04:09:30,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:30,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:09:30,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:30,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:30,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:09:30,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:30,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:30,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:09:30,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 25 proven. 223 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-27 04:09:30,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487878282] [2020-10-27 04:09:30,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:30,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 04:09:30,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397094428] [2020-10-27 04:09:30,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:09:30,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:30,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:09:30,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:09:30,961 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 19 states. [2020-10-27 04:09:31,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:31,737 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-27 04:09:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:09:31,738 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 81 [2020-10-27 04:09:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:31,740 INFO L225 Difference]: With dead ends: 58 [2020-10-27 04:09:31,740 INFO L226 Difference]: Without dead ends: 53 [2020-10-27 04:09:31,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=341, Invalid=715, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 04:09:31,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-27 04:09:31,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-27 04:09:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 04:09:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-10-27 04:09:31,750 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 81 [2020-10-27 04:09:31,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:31,750 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-10-27 04:09:31,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:09:31,750 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-10-27 04:09:31,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 04:09:31,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:31,752 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:31,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 04:09:31,752 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:31,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:31,752 INFO L82 PathProgramCache]: Analyzing trace with hash -550588569, now seen corresponding path program 12 times [2020-10-27 04:09:31,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:31,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444298325] [2020-10-27 04:09:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:31,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:32,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:33,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:33,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:33,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:33,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1811 [2020-10-27 04:09:33,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 04:09:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 04:09:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:33,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:33,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:33,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:33,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:33,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:33,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:33,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:33,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:33,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:33,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:33,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:33,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:33,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:33,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:33,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-27 04:09:33,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 04:09:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 04:09:33,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:33,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:33,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:34,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:34,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:34,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:34,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-27 04:09:34,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:34,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:34,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:34,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:34,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:34,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:34,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:34,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:34,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:34,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:34,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:34,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:34,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:34,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-27 04:09:34,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:34,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:34,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:34,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:34,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:34,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:35,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 04:09:35,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:35,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:35,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 04:09:35,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:35,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:35,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 04:09:35,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:35,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:35,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:35,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 04:09:35,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:35,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:35,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:35,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:35,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 04:09:35,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:35,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:35,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:35,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:35,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 04:09:35,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:35,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:35,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:35,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:35,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:09:35,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:35,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:35,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:35,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:09:35,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 10 proven. 269 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-10-27 04:09:35,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444298325] [2020-10-27 04:09:35,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:35,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 04:09:35,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877196494] [2020-10-27 04:09:35,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:09:35,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:35,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:09:35,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:09:35,770 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 19 states. [2020-10-27 04:09:36,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:36,718 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-27 04:09:36,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:09:36,719 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 87 [2020-10-27 04:09:36,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:36,721 INFO L225 Difference]: With dead ends: 61 [2020-10-27 04:09:36,721 INFO L226 Difference]: Without dead ends: 56 [2020-10-27 04:09:36,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=370, Invalid=752, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 04:09:36,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-27 04:09:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-27 04:09:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-27 04:09:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-10-27 04:09:36,730 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2020-10-27 04:09:36,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:36,730 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-10-27 04:09:36,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:09:36,730 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-10-27 04:09:36,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-27 04:09:36,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:36,732 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:36,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 04:09:36,732 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:36,733 INFO L82 PathProgramCache]: Analyzing trace with hash 953297599, now seen corresponding path program 13 times [2020-10-27 04:09:36,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:36,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477221686] [2020-10-27 04:09:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:37,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:37,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:37,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:37,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:37,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 939 [2020-10-27 04:09:37,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:09:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:37,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:37,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:37,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:37,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:37,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:37,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:37,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:37,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:37,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:37,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:37,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:38,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:38,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:38,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:38,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-27 04:09:38,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:38,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:09:38,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:38,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 04:09:38,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:38,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:38,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:38,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:38,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:38,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-27 04:09:38,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:38,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:38,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:38,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:38,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:38,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:39,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:39,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:39,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-27 04:09:39,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:39,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:39,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:39,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:39,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:39,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-27 04:09:39,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:39,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:39,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:39,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:39,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:39,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:39,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-27 04:09:39,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:39,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:39,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:39,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:39,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-27 04:09:39,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:39,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:39,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:39,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:39,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:39,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:39,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:39,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-27 04:09:39,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:40,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-27 04:09:40,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:40,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-27 04:09:40,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:40,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 04:09:40,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:40,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:40,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:09:40,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:40,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 04:09:40,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:09:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:40,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:09:40,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:40,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:40,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:09:40,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:40,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:40,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:09:40,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:40,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,820 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 45 proven. 296 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-10-27 04:09:40,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477221686] [2020-10-27 04:09:40,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:40,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 04:09:40,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798385946] [2020-10-27 04:09:40,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 04:09:40,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:40,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 04:09:40,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:09:40,822 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 20 states. [2020-10-27 04:09:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:41,716 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-27 04:09:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 04:09:41,716 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 93 [2020-10-27 04:09:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:41,718 INFO L225 Difference]: With dead ends: 64 [2020-10-27 04:09:41,718 INFO L226 Difference]: Without dead ends: 59 [2020-10-27 04:09:41,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=418, Invalid=842, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 04:09:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-27 04:09:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-27 04:09:41,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-27 04:09:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-27 04:09:41,727 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 93 [2020-10-27 04:09:41,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:41,727 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-27 04:09:41,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 04:09:41,727 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-27 04:09:41,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 04:09:41,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:41,729 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:41,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 04:09:41,729 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:41,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:41,729 INFO L82 PathProgramCache]: Analyzing trace with hash -929015641, now seen corresponding path program 14 times [2020-10-27 04:09:41,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:41,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213822600] [2020-10-27 04:09:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 04:09:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:42,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:42,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:42,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:43,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:43,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:43,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:43,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-27 04:09:43,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 04:09:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-27 04:09:43,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:43,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:43,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:43,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:43,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:43,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-27 04:09:43,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:43,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:43,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:43,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:44,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:44,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:44,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:44,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:44,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:44,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-27 04:09:44,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:44,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:44,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:44,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:44,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:44,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:44,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:44,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-27 04:09:44,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:44,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:44,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:44,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:44,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:45,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-27 04:09:45,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:45,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:45,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-27 04:09:45,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:45,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:45,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 04:09:45,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:45,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:45,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:09:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:45,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:09:45,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:45,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:09:45,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:45,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:45,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:09:45,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:45,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:45,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:09:45,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:45,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:45,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:45,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:45,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:45,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:45,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:45,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:09:45,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:45,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 32 proven. 319 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-10-27 04:09:46,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213822600] [2020-10-27 04:09:46,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:46,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 04:09:46,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966148983] [2020-10-27 04:09:46,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 04:09:46,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:46,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 04:09:46,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:09:46,044 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 21 states. [2020-10-27 04:09:46,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:46,992 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-27 04:09:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 04:09:46,992 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 99 [2020-10-27 04:09:46,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:46,994 INFO L225 Difference]: With dead ends: 67 [2020-10-27 04:09:46,994 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 04:09:46,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=469, Invalid=937, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 04:09:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 04:09:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-27 04:09:47,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-27 04:09:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-27 04:09:47,003 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 99 [2020-10-27 04:09:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:47,004 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-27 04:09:47,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 04:09:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-27 04:09:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 04:09:47,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:47,005 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:47,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 04:09:47,006 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:47,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:47,006 INFO L82 PathProgramCache]: Analyzing trace with hash -386344449, now seen corresponding path program 15 times [2020-10-27 04:09:47,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:47,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975010867] [2020-10-27 04:09:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:47,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:47,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:48,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:48,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:09:48,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:48,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1154 [2020-10-27 04:09:48,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 04:09:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 04:09:48,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:48,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:48,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:48,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:48,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:48,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:48,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:48,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:48,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:48,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:48,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-27 04:09:48,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 04:09:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 04:09:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:48,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:48,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:09:49,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:49,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:49,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:49,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:49,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:49,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-27 04:09:49,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:49,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:49,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:49,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:49,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:49,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-27 04:09:49,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:49,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:49,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:50,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:50,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:50,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-27 04:09:50,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:50,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:50,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:50,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:50,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:50,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:50,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 04:09:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:50,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:50,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:50,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:50,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:50,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-27 04:09:50,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:50,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:50,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:50,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:50,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:50,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 04:09:50,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:50,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:50,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:50,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:51,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-27 04:09:51,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:51,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:51,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 04:09:51,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:51,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:51,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 04:09:51,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:51,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:51,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:09:51,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:51,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:51,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:09:51,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:51,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:51,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:51,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,687 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 46 proven. 404 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-27 04:09:51,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975010867] [2020-10-27 04:09:51,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:51,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 04:09:51,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221626786] [2020-10-27 04:09:51,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 04:09:51,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:51,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 04:09:51,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=300, Unknown=0, NotChecked=0, Total=462 [2020-10-27 04:09:51,690 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 22 states. [2020-10-27 04:09:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:52,763 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-27 04:09:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 04:09:52,764 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 105 [2020-10-27 04:09:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:52,766 INFO L225 Difference]: With dead ends: 70 [2020-10-27 04:09:52,766 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 04:09:52,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=523, Invalid=1037, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 04:09:52,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 04:09:52,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-27 04:09:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 04:09:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-27 04:09:52,775 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 105 [2020-10-27 04:09:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:52,775 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-27 04:09:52,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 04:09:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-27 04:09:52,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 04:09:52,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:52,777 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:52,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 04:09:52,777 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:52,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:52,778 INFO L82 PathProgramCache]: Analyzing trace with hash 308404711, now seen corresponding path program 16 times [2020-10-27 04:09:52,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:52,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166642275] [2020-10-27 04:09:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:52,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:53,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1580 [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 04:09:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:54,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:54,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:54,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:54,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:54,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:54,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:54,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:09:54,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-27 04:09:54,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 04:09:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 04:09:54,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:54,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:55,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-27 04:09:55,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:09:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:09:55,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:56,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:56,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:56,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-27 04:09:56,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:56,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:09:56,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:09:56,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:56,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:56,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:56,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:56,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:56,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:56,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-27 04:09:56,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:56,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:56,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:56,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:56,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-27 04:09:56,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:56,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:57,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:57,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:57,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:57,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-27 04:09:57,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:57,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:57,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:57,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:57,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:57,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:57,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-27 04:09:57,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:57,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:57,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:57,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:57,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:57,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:57,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:57,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-27 04:09:57,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:57,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:57,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:57,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:57,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:57,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:57,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 04:09:57,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:57,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:57,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:57,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:57,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:57,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:57,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:57,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:57,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-27 04:09:57,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:57,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:57,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:57,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:58,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:58,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:58,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:58,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:58,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:58,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:58,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 04:09:58,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:58,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:58,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:58,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:58,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:58,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 04:09:58,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:58,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:58,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:58,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:58,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:58,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:58,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:58,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:09:58,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:58,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:58,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:58,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:58,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:58,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:58,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:58,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:58,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:58,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:09:58,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:58,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:58,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:58,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:58,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:58,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:58,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:58,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:09:58,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:58,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:58,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:58,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:58,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:58,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:58,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:58,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:58,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:58,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:58,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:58,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:58,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:58,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 67 proven. 460 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-27 04:09:58,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166642275] [2020-10-27 04:09:58,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:58,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 04:09:58,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105464858] [2020-10-27 04:09:58,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 04:09:58,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:58,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 04:09:58,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=326, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:09:58,580 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 23 states. [2020-10-27 04:09:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:59,644 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-27 04:09:59,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:09:59,645 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 111 [2020-10-27 04:09:59,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:59,646 INFO L225 Difference]: With dead ends: 73 [2020-10-27 04:09:59,646 INFO L226 Difference]: Without dead ends: 68 [2020-10-27 04:09:59,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=580, Invalid=1142, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 04:09:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-27 04:09:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-27 04:09:59,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-27 04:09:59,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-10-27 04:09:59,662 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 111 [2020-10-27 04:09:59,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:59,662 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-10-27 04:09:59,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 04:09:59,663 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-10-27 04:09:59,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 04:09:59,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:59,669 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:09:59,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 04:09:59,670 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:59,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:59,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1022814527, now seen corresponding path program 17 times [2020-10-27 04:09:59,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:59,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691573842] [2020-10-27 04:09:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:59,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:01,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:01,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:10:01,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1619 [2020-10-27 04:10:01,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:10:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-27 04:10:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:01,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:01,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:01,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:01,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:01,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 04:10:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:02,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:02,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:02,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:02,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:02,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-27 04:10:02,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:02,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:02,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:02,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:03,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:03,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:03,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:03,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-10-27 04:10:03,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:03,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:03,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:03,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:03,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:03,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:03,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:03,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:03,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:03,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:03,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-27 04:10:03,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:03,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:03,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:04,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:04,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:04,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:04,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:04,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:04,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-27 04:10:04,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:04,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:04,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:04,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:04,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:04,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:04,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:05,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 04:10:05,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:05,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:05,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-27 04:10:05,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:05,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:05,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:05,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 04:10:05,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:05,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:05,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 04:10:05,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:05,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:10:05,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:05,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:05,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 04:10:05,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:10:05,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 04:10:05,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:10:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:10:05,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:10:05,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:10:05,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:10:05,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:10:05,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:10:05,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:10:05,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:10:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:10:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:10:05,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:05,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:10:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 74 proven. 536 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-10-27 04:10:05,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691573842] [2020-10-27 04:10:05,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:05,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 04:10:05,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942093592] [2020-10-27 04:10:05,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 04:10:05,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:05,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 04:10:05,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2020-10-27 04:10:05,997 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-10-27 04:10:07,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:07,169 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-27 04:10:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:10:07,170 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 117 [2020-10-27 04:10:07,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:07,171 INFO L225 Difference]: With dead ends: 76 [2020-10-27 04:10:07,171 INFO L226 Difference]: Without dead ends: 71 [2020-10-27 04:10:07,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=662, Invalid=1318, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 04:10:07,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-27 04:10:07,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-27 04:10:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 04:10:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-27 04:10:07,180 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 117 [2020-10-27 04:10:07,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:07,180 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-27 04:10:07,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 04:10:07,180 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-27 04:10:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-27 04:10:07,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:07,182 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:10:07,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 04:10:07,182 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:07,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:07,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1909672743, now seen corresponding path program 18 times [2020-10-27 04:10:07,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:07,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758133180] [2020-10-27 04:10:07,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:07,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:07,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:10:09,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:09,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2025 [2020-10-27 04:10:09,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 04:10:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 04:10:09,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:09,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:09,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:09,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:10:09,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-10-27 04:10:09,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 04:10:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-27 04:10:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:10,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:10:10,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:10,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:11,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:11,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:11,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-27 04:10:11,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:11,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:11,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:11,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:11,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-27 04:10:11,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:11,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:11,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:11,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:11,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:11,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:11,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:12,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:12,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:12,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:12,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:12,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:12,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:12,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:12,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:12,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:12,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-27 04:10:12,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:12,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:12,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:12,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:12,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:12,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:12,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:12,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:13,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:13,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:13,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:13,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:13,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:13,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:13,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:13,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-27 04:10:13,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:13,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:13,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:13,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:13,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:13,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:13,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-27 04:10:13,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:13,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:13,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:13,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:13,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:13,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:13,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:13,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:13,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:13,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 04:10:13,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:13,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:13,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:13,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:13,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:13,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:13,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:13,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:13,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:10:13,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:13,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:13,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:13,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:13,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:13,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 04:10:13,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:13,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:13,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:13,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:13,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:14,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:14,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:14,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:14,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:10:14,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:14,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:10:14,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:10:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:10:14,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:14,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:14,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:14,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:14,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:10:14,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:14,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:10:14,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:10:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:10:14,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:14,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:14,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:14,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:14,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:10:14,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:14,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:10:14,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:10:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:10:14,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:14,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:14,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:14,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:14,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:10:14,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:14,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:14,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:14,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:14,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:10:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:14,306 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 14 proven. 547 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2020-10-27 04:10:14,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758133180] [2020-10-27 04:10:14,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:14,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 04:10:14,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201000692] [2020-10-27 04:10:14,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 04:10:14,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:14,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 04:10:14,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=381, Unknown=0, NotChecked=0, Total=600 [2020-10-27 04:10:14,309 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 25 states. [2020-10-27 04:10:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:15,568 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-27 04:10:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 04:10:15,573 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 123 [2020-10-27 04:10:15,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:15,575 INFO L225 Difference]: With dead ends: 79 [2020-10-27 04:10:15,591 INFO L226 Difference]: Without dead ends: 74 [2020-10-27 04:10:15,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=703, Invalid=1367, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 04:10:15,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-27 04:10:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-27 04:10:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 04:10:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-27 04:10:15,602 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 123 [2020-10-27 04:10:15,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:15,603 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-27 04:10:15,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 04:10:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-27 04:10:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-27 04:10:15,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:15,605 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:10:15,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 04:10:15,605 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:15,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1351374975, now seen corresponding path program 19 times [2020-10-27 04:10:15,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:15,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6988991] [2020-10-27 04:10:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:15,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:16,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:17,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:17,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:10:17,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:17,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1862 [2020-10-27 04:10:17,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:17,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 04:10:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 04:10:17,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:17,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:17,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:17,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:17,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:17,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:17,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:17,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:17,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:18,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:18,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:10:18,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:18,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 706 [2020-10-27 04:10:18,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:18,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 04:10:18,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:18,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-27 04:10:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:18,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:18,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:10:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:19,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:19,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:19,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:19,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:19,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-27 04:10:19,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:19,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:19,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:20,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:20,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:20,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-27 04:10:20,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:20,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:20,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:20,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:20,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:20,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:21,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:21,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:21,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:21,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:21,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-27 04:10:21,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:21,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:21,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:21,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:21,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:21,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:22,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-27 04:10:22,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:22,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:22,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:22,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:22,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 04:10:22,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:22,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:22,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:22,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:22,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-27 04:10:22,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:22,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:22,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:22,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:22,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:22,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-27 04:10:22,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:22,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:22,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:22,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:22,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 04:10:22,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:22,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:22,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 04:10:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:23,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 04:10:23,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:23,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:10:23,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 04:10:23,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:10:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:10:23,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:10:23,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:10:23,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:10:23,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:10:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:10:23,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:10:23,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:10:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:10:23,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:10:23,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:10:23,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:23,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:10:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 68 proven. 658 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-10-27 04:10:23,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6988991] [2020-10-27 04:10:23,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:23,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 04:10:23,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257651862] [2020-10-27 04:10:23,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 04:10:23,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:23,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 04:10:23,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2020-10-27 04:10:23,519 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 26 states. [2020-10-27 04:10:24,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:24,854 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-27 04:10:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 04:10:24,855 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 129 [2020-10-27 04:10:24,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:24,856 INFO L225 Difference]: With dead ends: 82 [2020-10-27 04:10:24,857 INFO L226 Difference]: Without dead ends: 77 [2020-10-27 04:10:24,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=769, Invalid=1487, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 04:10:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-27 04:10:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-27 04:10:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-27 04:10:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-27 04:10:24,865 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 129 [2020-10-27 04:10:24,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:24,866 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-27 04:10:24,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 04:10:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-27 04:10:24,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 04:10:24,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:24,868 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:10:24,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 04:10:24,868 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:24,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:24,868 INFO L82 PathProgramCache]: Analyzing trace with hash 676631655, now seen corresponding path program 20 times [2020-10-27 04:10:24,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:24,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77097693] [2020-10-27 04:10:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:24,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:28,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:28,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:10:28,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3159 [2020-10-27 04:10:28,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-27 04:10:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 04:10:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:28,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:28,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:28,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:28,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:28,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:28,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:28,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:28,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:28,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:10:28,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-27 04:10:28,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-27 04:10:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-27 04:10:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:28,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:28,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:30,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:30,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:10:30,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:30,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-10-27 04:10:30,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:10:30,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:30,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:10:30,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:30,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:30,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:30,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:30,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:10:30,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:30,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 692 [2020-10-27 04:10:30,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:10:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:10:30,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:30,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:30,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:31,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:10:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:31,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:31,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:31,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:31,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:31,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:31,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-27 04:10:31,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:31,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:32,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:32,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:32,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:32,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:32,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:32,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:32,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:32,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:33,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:33,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:33,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-27 04:10:33,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:33,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:33,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:33,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:33,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:33,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:33,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:33,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:33,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-27 04:10:33,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:33,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:33,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:33,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:33,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:33,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:33,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:33,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:33,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:33,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:33,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-27 04:10:33,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:33,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:33,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:33,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:33,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:33,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:34,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-27 04:10:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:34,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-27 04:10:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:34,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:34,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-27 04:10:34,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:34,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 04:10:34,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:34,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:34,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:10:34,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:34,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:34,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 04:10:34,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:34,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:34,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:10:34,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:34,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 04:10:34,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:10:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:10:34,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:34,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:34,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:35,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:35,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:10:35,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:35,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:10:35,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:10:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:10:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:35,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:35,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:35,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:10:35,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:35,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:10:35,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:10:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:10:35,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:35,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:35,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:35,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:35,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:10:35,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:35,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:35,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:35,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:35,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:10:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 30 proven. 789 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2020-10-27 04:10:35,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77097693] [2020-10-27 04:10:35,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:35,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-27 04:10:35,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227428232] [2020-10-27 04:10:35,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-27 04:10:35,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:35,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-27 04:10:35,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=440, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:10:35,247 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 27 states. [2020-10-27 04:10:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:36,622 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-10-27 04:10:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 04:10:36,622 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 135 [2020-10-27 04:10:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:36,624 INFO L225 Difference]: With dead ends: 85 [2020-10-27 04:10:36,624 INFO L226 Difference]: Without dead ends: 80 [2020-10-27 04:10:36,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=838, Invalid=1612, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 04:10:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-27 04:10:36,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-27 04:10:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-27 04:10:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-10-27 04:10:36,631 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 135 [2020-10-27 04:10:36,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:36,632 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-10-27 04:10:36,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-27 04:10:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-10-27 04:10:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 04:10:36,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:36,634 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:10:36,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 04:10:36,634 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:36,634 INFO L82 PathProgramCache]: Analyzing trace with hash -2089211969, now seen corresponding path program 21 times [2020-10-27 04:10:36,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:36,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459742000] [2020-10-27 04:10:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:37,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:39,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:39,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 04:10:39,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3074 [2020-10-27 04:10:39,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 04:10:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:39,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:39,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:39,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:39,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:40,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:40,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:10:40,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:40,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 861 [2020-10-27 04:10:40,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 04:10:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-27 04:10:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:40,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:41,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:10:41,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-10-27 04:10:41,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:10:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:10:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:41,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:41,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:42,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:42,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:10:42,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:42,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 809 [2020-10-27 04:10:42,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:10:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:10:42,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:42,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:42,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:43,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:10:43,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:43,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:43,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:43,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:43,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:43,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:43,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-27 04:10:43,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:43,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:10:43,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:43,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:10:43,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:43,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:43,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:44,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:44,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:44,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:44,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:44,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-27 04:10:44,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:44,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:44,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:45,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:45,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:45,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:45,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-27 04:10:45,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:45,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:45,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:45,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:45,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:45,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:45,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-27 04:10:45,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:45,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:45,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:45,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:45,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:45,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:45,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:45,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-27 04:10:45,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:45,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:45,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:45,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:46,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:46,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:46,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-27 04:10:46,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:46,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:46,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:46,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:46,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:46,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:46,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-27 04:10:46,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:46,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:46,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:46,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:46,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:46,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:46,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 04:10:46,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:46,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:46,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:46,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:46,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:46,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:46,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:46,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-27 04:10:46,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:46,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:46,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:46,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:46,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:46,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:46,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:46,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:46,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:46,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:46,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 04:10:46,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:46,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:46,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:46,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:46,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:46,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:46,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:46,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:46,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:46,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:46,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 04:10:46,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:46,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:46,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:46,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:46,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:47,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:47,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:47,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:47,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:47,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 04:10:47,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:47,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:47,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:47,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:47,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:47,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 04:10:47,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:47,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:47,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:47,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:10:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:47,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:47,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:47,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:47,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:10:47,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:47,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:10:47,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:10:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:10:47,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:47,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:47,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:47,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:47,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:10:47,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:47,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:10:47,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:10:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:10:47,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:47,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:47,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:47,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:47,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:10:47,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:47,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:47,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:47,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:47,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:47,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:10:47,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:47,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 72 proven. 726 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2020-10-27 04:10:47,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459742000] [2020-10-27 04:10:47,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:47,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 04:10:47,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997398920] [2020-10-27 04:10:47,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 04:10:47,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:47,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 04:10:47,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=471, Unknown=0, NotChecked=0, Total=756 [2020-10-27 04:10:47,535 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 28 states. [2020-10-27 04:10:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:48,983 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-27 04:10:48,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 04:10:48,985 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 141 [2020-10-27 04:10:48,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:48,987 INFO L225 Difference]: With dead ends: 88 [2020-10-27 04:10:48,987 INFO L226 Difference]: Without dead ends: 83 [2020-10-27 04:10:48,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=910, Invalid=1742, Unknown=0, NotChecked=0, Total=2652 [2020-10-27 04:10:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-27 04:10:48,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-27 04:10:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-27 04:10:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-10-27 04:10:48,995 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 141 [2020-10-27 04:10:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:48,995 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-10-27 04:10:48,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 04:10:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-10-27 04:10:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 04:10:48,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:48,997 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:10:48,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 04:10:48,998 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:48,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:48,998 INFO L82 PathProgramCache]: Analyzing trace with hash 54902183, now seen corresponding path program 22 times [2020-10-27 04:10:48,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:48,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876952800] [2020-10-27 04:10:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:49,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:50,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:51,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:51,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-27 04:10:51,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2185 [2020-10-27 04:10:51,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 04:10:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 04:10:51,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:51,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:51,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:51,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:52,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:52,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:10:52,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-10-27 04:10:52,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 04:10:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-27 04:10:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:52,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:52,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 04:10:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:53,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 835 [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:10:54,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:54,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:54,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:55,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:55,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:55,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:10:55,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:55,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-27 04:10:55,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:10:55,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:55,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:10:55,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:55,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:56,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:56,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:56,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:56,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-27 04:10:56,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:10:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:10:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:56,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:56,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:56,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:56,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:56,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-27 04:10:56,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:56,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:57,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:57,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:57,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:57,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:57,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:57,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:57,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:57,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-27 04:10:57,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:57,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:57,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:57,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:57,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:57,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:58,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:58,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:58,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-10-27 04:10:58,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:58,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:58,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:58,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:58,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:58,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:58,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-27 04:10:58,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:58,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:58,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:58,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:58,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:58,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:59,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:59,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:59,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:59,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-27 04:10:59,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:59,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:59,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:59,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:59,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:59,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:59,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:59,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-27 04:10:59,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:59,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:59,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:59,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:59,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:59,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:59,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:59,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:59,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-27 04:10:59,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:59,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:59,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:59,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:59,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:59,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 04:10:59,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:59,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:59,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:59,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:59,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-27 04:10:59,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:59,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:59,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:59,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:59,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:59,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 04:10:59,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:59,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:59,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:59,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:59,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:59,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:59,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 04:10:59,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:59,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:11:00,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:00,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 04:11:00,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:11:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:11:00,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:11:00,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:00,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:11:00,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:11:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:11:00,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:11:00,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:00,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:11:00,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:11:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:11:00,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:11:00,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:00,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:11:00,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 142 proven. 803 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2020-10-27 04:11:00,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876952800] [2020-10-27 04:11:00,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:00,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-27 04:11:00,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693587062] [2020-10-27 04:11:00,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-27 04:11:00,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:00,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-27 04:11:00,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=503, Unknown=0, NotChecked=0, Total=812 [2020-10-27 04:11:00,376 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 29 states. [2020-10-27 04:11:02,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:02,033 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-10-27 04:11:02,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 04:11:02,034 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 147 [2020-10-27 04:11:02,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:02,036 INFO L225 Difference]: With dead ends: 91 [2020-10-27 04:11:02,036 INFO L226 Difference]: Without dead ends: 86 [2020-10-27 04:11:02,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=985, Invalid=1877, Unknown=0, NotChecked=0, Total=2862 [2020-10-27 04:11:02,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-27 04:11:02,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-27 04:11:02,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-27 04:11:02,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2020-10-27 04:11:02,045 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 147 [2020-10-27 04:11:02,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:02,046 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2020-10-27 04:11:02,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-27 04:11:02,046 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2020-10-27 04:11:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 04:11:02,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:02,048 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:11:02,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 04:11:02,048 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:02,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:02,049 INFO L82 PathProgramCache]: Analyzing trace with hash 2038257407, now seen corresponding path program 23 times [2020-10-27 04:11:02,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:02,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756541789] [2020-10-27 04:11:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:02,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:03,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:05,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3561 [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-27 04:11:05,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:05,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:05,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:05,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:05,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:11:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:05,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1075 [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-27 04:11:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:06,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:06,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-27 04:11:07,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:07,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:07,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:08,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:08,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:11:08,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-10-27 04:11:08,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 04:11:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 04:11:08,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:08,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:08,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:09,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:09,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:11:09,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-10-27 04:11:09,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:09,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:11:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:11:09,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:09,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:09,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 753 [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:11:10,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:10,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:11,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:11,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:11:11,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:11,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 683 [2020-10-27 04:11:11,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:11:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:11:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:11,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:11,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:11,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:11,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:11:11,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:11,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-27 04:11:11,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:11:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:11:11,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:11,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:12,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:12,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:11:12,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-27 04:11:12,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:11:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:11:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:12,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:12,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:13,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:13,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:11:13,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-10-27 04:11:13,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:11:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:11:13,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:13,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:13,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:13,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:13,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:13,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:14,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:14,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:11:14,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:14,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-27 04:11:14,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:11:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:11:14,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:14,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:14,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:14,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:14,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:11:14,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-27 04:11:14,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:11:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:14,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:11:14,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:14,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:14,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:14,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:14,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:11:14,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:14,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-27 04:11:14,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:14,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:11:14,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:11:14,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:14,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:14,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:14,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:14,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:11:14,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-27 04:11:14,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:11:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:11:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:14,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:14,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:11:15,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-27 04:11:15,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:11:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:11:15,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:11:15,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 04:11:15,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:11:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:11:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:11:15,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 04:11:15,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:11:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:11:15,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:11:15,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 04:11:15,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:11:15,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:11:15,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:11:15,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 04:11:15,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:11:15,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:11:15,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:11:15,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:11:15,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:11:15,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:11:15,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:11:15,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:11:15,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:11:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:11:15,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:11:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:11:15,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:11:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:11:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:11:15,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:11:15,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:11:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:11:15,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:15,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:15,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:15,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:15,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:11:15,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:15,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:11:15,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:11:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:11:15,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 113 proven. 945 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-27 04:11:16,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756541789] [2020-10-27 04:11:16,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:16,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-27 04:11:16,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402871978] [2020-10-27 04:11:16,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-27 04:11:16,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:16,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-27 04:11:16,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=593, Unknown=0, NotChecked=0, Total=930 [2020-10-27 04:11:16,181 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand 31 states. [2020-10-27 04:11:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:17,819 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-10-27 04:11:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 04:11:17,820 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 153 [2020-10-27 04:11:17,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:17,822 INFO L225 Difference]: With dead ends: 94 [2020-10-27 04:11:17,822 INFO L226 Difference]: Without dead ends: 89 [2020-10-27 04:11:17,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1091, Invalid=2101, Unknown=0, NotChecked=0, Total=3192 [2020-10-27 04:11:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-27 04:11:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-10-27 04:11:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-27 04:11:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2020-10-27 04:11:17,830 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 153 [2020-10-27 04:11:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:17,831 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2020-10-27 04:11:17,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-27 04:11:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2020-10-27 04:11:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-27 04:11:17,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:17,832 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:11:17,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 04:11:17,832 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:17,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:17,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1543948007, now seen corresponding path program 24 times [2020-10-27 04:11:17,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:17,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771371072] [2020-10-27 04:11:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:17,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:22,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:22,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-27 04:11:22,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:22,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4359 [2020-10-27 04:11:22,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:22,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-27 04:11:22,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:22,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 04:11:22,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:22,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:22,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:22,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:22,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:11:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:22,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:23,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1269 [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-27 04:11:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:23,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:23,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:24,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:24,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 04:11:24,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:24,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1214 [2020-10-27 04:11:24,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:24,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-27 04:11:24,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:24,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-27 04:11:24,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:24,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:24,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1057 [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-27 04:11:25,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:26,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:27,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 04:11:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:27,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:27,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 908 [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:11:27,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:28,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:28,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:28,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:11:28,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:28,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 772 [2020-10-27 04:11:28,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:11:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:11:28,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:28,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:28,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:29,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:29,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:11:29,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:29,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 692 [2020-10-27 04:11:29,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:11:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:11:29,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:29,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:29,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:30,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:30,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:11:30,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-27 04:11:30,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:11:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:11:30,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:30,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:30,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:30,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:30,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:11:30,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:30,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-27 04:11:30,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:11:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:11:30,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:30,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:30,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:11:31,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:31,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:11:31,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-27 04:11:31,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:31,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:11:31,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:31,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:11:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:31,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:31,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:32,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:32,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:11:32,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:32,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-27 04:11:32,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:11:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:11:32,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:32,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:32,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:32,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:32,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:11:32,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:32,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-27 04:11:32,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:11:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:11:32,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:32,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:32,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:32,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:32,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:11:32,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:32,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-27 04:11:32,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:11:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:11:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:32,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:32,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:11:33,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-27 04:11:33,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:11:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:11:33,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:33,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:33,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:11:33,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-27 04:11:33,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:11:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:11:33,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:33,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:33,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:11:33,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-27 04:11:33,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:11:33,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:11:33,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:33,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:11:33,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 04:11:33,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:11:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:11:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:33,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:33,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:11:33,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 04:11:33,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:11:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:11:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:33,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:33,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:11:33,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 04:11:33,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:11:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:11:33,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:33,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:33,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:11:33,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 04:11:33,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:11:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:11:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:33,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:33,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:33,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:11:33,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:11:33,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:11:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:11:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:34,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:34,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:34,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:34,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:11:34,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:34,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:11:34,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:34,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:11:34,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:34,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:11:34,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:34,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:34,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:34,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:34,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:11:34,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:34,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:11:34,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:34,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:11:34,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:34,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:11:34,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:34,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:34,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:34,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:34,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:11:34,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:11:34,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:11:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:11:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 132 proven. 1034 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2020-10-27 04:11:34,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771371072] [2020-10-27 04:11:34,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:34,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-27 04:11:34,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908403201] [2020-10-27 04:11:34,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-27 04:11:34,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:34,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-27 04:11:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=570, Unknown=0, NotChecked=0, Total=930 [2020-10-27 04:11:34,374 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 31 states. [2020-10-27 04:11:36,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:36,079 INFO L93 Difference]: Finished difference Result 97 states and 98 transitions. [2020-10-27 04:11:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 04:11:36,080 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 159 [2020-10-27 04:11:36,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:36,082 INFO L225 Difference]: With dead ends: 97 [2020-10-27 04:11:36,082 INFO L226 Difference]: Without dead ends: 92 [2020-10-27 04:11:36,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1144, Invalid=2162, Unknown=0, NotChecked=0, Total=3306 [2020-10-27 04:11:36,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-27 04:11:36,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-27 04:11:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-27 04:11:36,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 93 transitions. [2020-10-27 04:11:36,091 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 93 transitions. Word has length 159 [2020-10-27 04:11:36,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:36,091 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 93 transitions. [2020-10-27 04:11:36,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-27 04:11:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 93 transitions. [2020-10-27 04:11:36,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-27 04:11:36,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:36,093 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:11:36,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 04:11:36,093 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:36,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:36,094 INFO L82 PathProgramCache]: Analyzing trace with hash 442033727, now seen corresponding path program 25 times [2020-10-27 04:11:36,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:36,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966418126] [2020-10-27 04:11:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:36,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:40,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4129 [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 106 [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-10-27 04:11:40,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:40,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:40,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:40,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:40,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:40,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:40,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:11:40,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:40,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:40,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:11:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:44,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:44,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 04:11:44,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:44,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3932 [2020-10-27 04:11:44,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 105 [2020-10-27 04:11:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-27 04:11:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:44,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:47,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:47,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-27 04:11:47,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3224 [2020-10-27 04:11:47,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 102 [2020-10-27 04:11:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-27 04:11:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:47,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:50,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:50,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 04:11:50,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:50,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2916 [2020-10-27 04:11:50,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 98 [2020-10-27 04:11:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-27 04:11:50,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:50,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:50,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:53,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2637 [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 94 [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-27 04:11:53,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:53,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:53,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2371 [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 90 [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 04:11:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:55,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:57,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:57,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:11:57,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2062 [2020-10-27 04:11:57,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 86 [2020-10-27 04:11:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:11:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:58,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:58,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:59,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:59,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:11:59,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:59,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1845 [2020-10-27 04:11:59,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-27 04:11:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:11:59,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:59,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:11:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:59,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:01,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:01,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:12:01,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:01,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-10-27 04:12:01,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-27 04:12:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:12:01,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:01,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:01,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:02,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:02,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:12:02,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:02,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1423 [2020-10-27 04:12:02,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-27 04:12:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:12:02,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:03,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:03,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:04,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:04,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:12:04,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:04,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1217 [2020-10-27 04:12:04,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-27 04:12:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:04,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:12:04,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:04,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:04,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:05,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:05,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-10-27 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-27 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:05,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:06,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:06,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:12:06,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:06,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-10-27 04:12:06,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:06,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 04:12:06,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:06,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:12:06,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:06,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:06,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:07,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:07,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:12:07,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:07,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-10-27 04:12:07,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:07,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 04:12:07,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:07,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:12:07,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:07,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:07,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:07,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:12:07,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 683 [2020-10-27 04:12:07,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 04:12:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:12:07,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:07,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:07,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:08,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:08,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:12:08,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:08,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-27 04:12:08,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:12:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:12:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:08,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:08,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:08,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:08,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:12:08,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-27 04:12:08,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 04:12:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:12:08,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:08,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:09,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:09,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:12:09,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-10-27 04:12:09,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 04:12:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:12:09,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:09,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:09,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:09,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:09,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:12:09,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:09,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-27 04:12:09,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:09,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:12:09,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:12:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:09,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:09,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:09,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:09,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:12:09,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:09,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-27 04:12:09,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 04:12:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:12:09,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:09,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:09,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:09,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:09,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:12:09,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:09,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-27 04:12:09,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:12:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:09,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:12:09,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:09,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:09,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:10,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:10,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:12:10,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 04:12:10,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 04:12:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:12:10,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:10,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:10,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:10,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:10,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:12:10,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:10,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 04:12:10,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:10,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:12:10,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:10,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:12:10,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:10,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:10,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:10,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:10,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:12:10,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:10,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 04:12:10,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:12:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:12:10,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:10,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:10,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:10,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:10,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:12:10,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:10,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:12:10,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:12:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:12:10,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:10,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:10,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:10,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:10,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:12:10,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:10,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:12:10,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:12:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:12:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:10,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:12:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:12:10,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:12:10,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:12:10,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:12:10,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:12:10,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:12:10,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:12:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:12:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:12:10,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:12:10,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:12:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 22 proven. 275 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2020-10-27 04:12:10,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966418126] [2020-10-27 04:12:10,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:12:10,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 04:12:10,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958051592] [2020-10-27 04:12:10,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:12:10,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:12:10,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:12:10,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:12:10,690 INFO L87 Difference]: Start difference. First operand 92 states and 93 transitions. Second operand 9 states. [2020-10-27 04:12:10,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:12:10,989 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2020-10-27 04:12:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:12:10,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-10-27 04:12:10,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:12:10,990 INFO L225 Difference]: With dead ends: 92 [2020-10-27 04:12:10,991 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 04:12:10,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:12:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 04:12:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 04:12:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 04:12:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 04:12:10,992 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-10-27 04:12:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:12:10,992 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 04:12:10,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:12:10,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 04:12:10,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 04:12:10,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 04:12:10,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 04:12:11,194 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 04:12:11,194 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 04:12:11,194 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 04:12:11,195 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 04:12:11,195 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 04:12:11,196 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 04:12:11,196 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 04:12:11,196 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 04:12:11,196 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 04:12:11,196 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 04:12:11,196 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 04:12:11,196 INFO L274 CegarLoopResult]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2020-10-27 04:12:11,196 INFO L270 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2020-10-27 04:12:11,196 INFO L274 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-10-27 04:12:11,196 INFO L274 CegarLoopResult]: For program point L6(lines 6 10) no Hoare annotation was computed. [2020-10-27 04:12:11,197 INFO L274 CegarLoopResult]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2020-10-27 04:12:11,197 INFO L277 CegarLoopResult]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2020-10-27 04:12:11,197 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2020-10-27 04:12:11,197 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 13 20) no Hoare annotation was computed. [2020-10-27 04:12:11,197 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: false [2020-10-27 04:12:11,197 INFO L274 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-10-27 04:12:11,197 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-10-27 04:12:11,197 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= main_~a~0 25) [2020-10-27 04:12:11,197 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-10-27 04:12:11,197 INFO L274 CegarLoopResult]: For program point L17-2(lines 13 20) no Hoare annotation was computed. [2020-10-27 04:12:11,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:12:11 BoogieIcfgContainer [2020-10-27 04:12:11,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 04:12:11,207 INFO L168 Benchmark]: Toolchain (without parser) took 189516.22 ms. Allocated memory was 169.9 MB in the beginning and 886.0 MB in the end (delta: 716.2 MB). Free memory was 145.6 MB in the beginning and 519.0 MB in the end (delta: -373.4 MB). Peak memory consumption was 342.9 MB. Max. memory is 8.0 GB. [2020-10-27 04:12:11,207 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 169.9 MB. Free memory is still 142.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 04:12:11,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.32 ms. Allocated memory is still 169.9 MB. Free memory was 144.9 MB in the beginning and 136.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-27 04:12:11,209 INFO L168 Benchmark]: Boogie Preprocessor took 30.25 ms. Allocated memory is still 169.9 MB. Free memory was 136.0 MB in the beginning and 134.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 04:12:11,213 INFO L168 Benchmark]: RCFGBuilder took 334.12 ms. Allocated memory is still 169.9 MB. Free memory was 134.7 MB in the beginning and 122.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 04:12:11,214 INFO L168 Benchmark]: TraceAbstraction took 188897.16 ms. Allocated memory was 169.9 MB in the beginning and 886.0 MB in the end (delta: 716.2 MB). Free memory was 121.9 MB in the beginning and 519.0 MB in the end (delta: -397.2 MB). Peak memory consumption was 319.8 MB. Max. memory is 8.0 GB. [2020-10-27 04:12:11,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 169.9 MB. Free memory is still 142.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 237.32 ms. Allocated memory is still 169.9 MB. Free memory was 144.9 MB in the beginning and 136.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.25 ms. Allocated memory is still 169.9 MB. Free memory was 136.0 MB in the beginning and 134.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 334.12 ms. Allocated memory is still 169.9 MB. Free memory was 134.7 MB in the beginning and 122.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 188897.16 ms. Allocated memory was 169.9 MB in the beginning and 886.0 MB in the end (delta: 716.2 MB). Free memory was 121.9 MB in the beginning and 519.0 MB in the end (delta: -397.2 MB). Peak memory consumption was 319.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 188.6s, OverallIterations: 26, TraceHistogramMax: 26, AutomataDifference: 22.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 337 SDtfs, 2015 SDslu, 800 SDs, 0 SdLazy, 2491 SolverSat, 1128 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1589 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 813 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6218 ImplicationChecksByTransitivity, 24.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 26 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 36 PreInvPairs, 36 NumberOfFragments, 47 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 127 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 164.4s InterpolantComputationTime, 2340 NumberOfCodeBlocks, 2340 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2314 ConstructedInterpolants, 0 QuantifiedInterpolants, 908084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 1 PerfectInterpolantSequences, 7904/16900 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...