/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/id_i25_o25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:07:26,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:07:26,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:07:26,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:07:26,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:07:26,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:07:26,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:07:26,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:07:26,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:07:26,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:07:26,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:07:26,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:07:26,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:07:26,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:07:26,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:07:26,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:07:26,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:07:26,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:07:26,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:07:26,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:07:26,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:07:26,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:07:26,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:07:26,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:07:26,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:07:26,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:07:26,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:07:26,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:07:26,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:07:26,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:07:26,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:07:26,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:07:26,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:07:26,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:07:26,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:07:26,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:07:26,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:07:26,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:07:26,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:07:26,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:07:26,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:07:26,487 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 04:07:26,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:07:26,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:07:26,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:07:26,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:07:26,547 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:07:26,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:07:26,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:07:26,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:07:26,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:07:26,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:07:26,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:07:26,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:07:26,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:07:26,550 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:07:26,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:07:26,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:07:26,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:07:26,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:07:26,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:07:26,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:07:26,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:07:26,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:07:26,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:07:26,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:07:26,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:07:26,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:07:26,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:07:26,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:07:26,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:07:26,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:07:26,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:07:27,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:07:27,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:07:27,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:07:27,034 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:07:27,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-2.c [2020-10-27 04:07:27,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3520b228/38c49bba335b4dd9ba630944c82e7cc6/FLAGbd4d438b7 [2020-10-27 04:07:27,823 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:07:27,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i25_o25-2.c [2020-10-27 04:07:27,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3520b228/38c49bba335b4dd9ba630944c82e7cc6/FLAGbd4d438b7 [2020-10-27 04:07:28,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3520b228/38c49bba335b4dd9ba630944c82e7cc6 [2020-10-27 04:07:28,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:07:28,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:07:28,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:07:28,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:07:28,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:07:28,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126272a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28, skipping insertion in model container [2020-10-27 04:07:28,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:07:28,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:07:28,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:07:28,438 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:07:28,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:07:28,467 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:07:28,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28 WrapperNode [2020-10-27 04:07:28,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:07:28,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:07:28,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:07:28,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:07:28,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (1/1) ... [2020-10-27 04:07:28,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:07:28,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:07:28,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:07:28,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:07:28,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (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 04:07:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:07:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:07:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:07:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-27 04:07:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:07:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 04:07:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:07:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:07:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:07:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:07:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-27 04:07:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:07:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:07:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:07:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:07:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:07:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:07:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:07:28,861 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:07:28,862 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 04:07:28,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:07:28 BoogieIcfgContainer [2020-10-27 04:07:28,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:07:28,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:07:28,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:07:28,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:07:28,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:07:28" (1/3) ... [2020-10-27 04:07:28,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a153ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:07:28, skipping insertion in model container [2020-10-27 04:07:28,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:28" (2/3) ... [2020-10-27 04:07:28,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a153ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:07:28, skipping insertion in model container [2020-10-27 04:07:28,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:07:28" (3/3) ... [2020-10-27 04:07:28,874 INFO L111 eAbstractionObserver]: Analyzing ICFG id_i25_o25-2.c [2020-10-27 04:07:28,887 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:07:28,893 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:07:28,911 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:07:28,944 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:07:28,944 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:07:28,944 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:07:28,945 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:07:28,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:07:28,945 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:07:28,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:07:28,945 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:07:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-27 04:07:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 04:07:28,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:28,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:28,973 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:28,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:28,985 INFO L82 PathProgramCache]: Analyzing trace with hash 560135365, now seen corresponding path program 1 times [2020-10-27 04:07:29,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:29,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914172311] [2020-10-27 04:07:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:29,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:29,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:29,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:29,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:29,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 741 [2020-10-27 04:07:29,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:07:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:07:29,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:07:30,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:30,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:30,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:30,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:30,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:30,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:07:30,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:30,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:30,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:30,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:30,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:30,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:30,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:30,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:07:30,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:07:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:07:30,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:30,128 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 04:07:30,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914172311] [2020-10-27 04:07:30,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:07:30,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 04:07:30,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645903883] [2020-10-27 04:07:30,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:07:30,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:30,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:07:30,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:07:30,162 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-27 04:07:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:30,479 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-27 04:07:30,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:07:30,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 04:07:30,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:30,492 INFO L225 Difference]: With dead ends: 36 [2020-10-27 04:07:30,492 INFO L226 Difference]: Without dead ends: 20 [2020-10-27 04:07:30,496 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 04:07:30,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-27 04:07:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-27 04:07:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-27 04:07:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-27 04:07:30,548 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-27 04:07:30,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:30,549 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-27 04:07:30,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:07:30,549 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-27 04:07:30,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 04:07:30,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:30,552 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 04:07:30,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:07:30,552 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:30,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:30,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1295611761, now seen corresponding path program 1 times [2020-10-27 04:07:30,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:30,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502179265] [2020-10-27 04:07:30,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:30,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:30,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:31,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:31,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:31,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:31,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-10-27 04:07:31,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:07:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:07:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:31,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:31,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:31,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:31,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:31,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:07:31,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:31,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:31,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:31,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:31,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:31,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:31,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:31,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-27 04:07:31,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:07:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:07:31,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:31,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:31,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:31,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:31,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:31,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:31,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:07:31,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:31,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 04:07:31,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502179265] [2020-10-27 04:07:31,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:31,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:07:31,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13393390] [2020-10-27 04:07:31,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:07:31,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:31,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:07:31,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:07:31,545 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-27 04:07:31,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:31,807 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-27 04:07:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:07:31,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-27 04:07:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:31,808 INFO L225 Difference]: With dead ends: 28 [2020-10-27 04:07:31,809 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 04:07:31,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:07:31,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 04:07:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 04:07:31,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 04:07:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-27 04:07:31,819 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-27 04:07:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:31,819 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-27 04:07:31,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:07:31,819 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-27 04:07:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 04:07:31,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:31,821 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 04:07:31,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:07:31,821 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:31,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:31,822 INFO L82 PathProgramCache]: Analyzing trace with hash -116387003, now seen corresponding path program 2 times [2020-10-27 04:07:31,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:31,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782888584] [2020-10-27 04:07:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:31,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:32,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:32,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:32,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:32,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 848 [2020-10-27 04:07:32,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:07:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:07:32,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:32,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:32,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:32,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:32,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:32,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:32,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:32,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:32,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:32,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 04:07:32,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:32,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:07:32,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:32,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:07:32,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:32,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:32,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:32,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:32,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:32,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 04:07:32,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:32,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:32,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:32,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:32,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:32,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:32,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:32,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:07:32,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:32,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:32,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:32,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 04:07:32,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782888584] [2020-10-27 04:07:32,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:32,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:07:32,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221769574] [2020-10-27 04:07:32,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:07:32,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:32,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:07:32,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:07:32,878 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 8 states. [2020-10-27 04:07:33,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:33,127 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-27 04:07:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:07:33,128 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-10-27 04:07:33,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:33,129 INFO L225 Difference]: With dead ends: 31 [2020-10-27 04:07:33,129 INFO L226 Difference]: Without dead ends: 26 [2020-10-27 04:07:33,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:07:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-27 04:07:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-27 04:07:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-27 04:07:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-27 04:07:33,139 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-27 04:07:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:33,139 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-27 04:07:33,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:07:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-27 04:07:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 04:07:33,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:33,141 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 04:07:33,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:07:33,141 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:33,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:33,142 INFO L82 PathProgramCache]: Analyzing trace with hash -738125937, now seen corresponding path program 3 times [2020-10-27 04:07:33,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:33,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416774987] [2020-10-27 04:07:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:33,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:33,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:34,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:34,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:34,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1156 [2020-10-27 04:07:34,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:07:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 04:07:34,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:34,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:34,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:34,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:34,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:34,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:34,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:07:34,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:34,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:34,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:34,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:34,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:34,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:34,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:34,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:34,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:34,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:34,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 04:07:34,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:07:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:34,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 04:07:34,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:34,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:34,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:34,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:34,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:34,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:34,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:07:34,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:34,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:34,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:34,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:34,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:34,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:34,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:34,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:34,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:07:34,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:34,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:34,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:34,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:34,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:34,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:34,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:34,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:07:34,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:34,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:34,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 04:07:34,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416774987] [2020-10-27 04:07:34,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:34,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 04:07:34,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742829019] [2020-10-27 04:07:34,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:07:34,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:34,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:07:34,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:07:34,623 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-10-27 04:07:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:34,926 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-27 04:07:34,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 04:07:34,927 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-10-27 04:07:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:34,928 INFO L225 Difference]: With dead ends: 34 [2020-10-27 04:07:34,928 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 04:07:34,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:07:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 04:07:34,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 04:07:34,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 04:07:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-27 04:07:34,937 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-27 04:07:34,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:34,938 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-27 04:07:34,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:07:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-27 04:07:34,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 04:07:34,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:34,939 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 04:07:34,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:07:34,940 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:34,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1342585285, now seen corresponding path program 4 times [2020-10-27 04:07:34,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:34,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444694271] [2020-10-27 04:07:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:34,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:35,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:35,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:35,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:35,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 930 [2020-10-27 04:07:35,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:07:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:07:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:35,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:35,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:35,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:35,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:35,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:35,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:35,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:35,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:35,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:36,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:36,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:36,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 04:07:36,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:07:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 04:07:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:36,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:36,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:36,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:36,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 04:07:36,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:36,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:36,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:36,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:36,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:36,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:36,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 04:07:36,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:36,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:36,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:36,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:36,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:36,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:36,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:07:36,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:36,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:36,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:36,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:36,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:36,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:36,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:07:36,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:36,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:36,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:36,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:36,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 04:07:36,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444694271] [2020-10-27 04:07:36,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:36,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 04:07:36,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194957626] [2020-10-27 04:07:36,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:07:36,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:36,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:07:36,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:07:36,331 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 10 states. [2020-10-27 04:07:36,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:36,712 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-27 04:07:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 04:07:36,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-27 04:07:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:36,714 INFO L225 Difference]: With dead ends: 37 [2020-10-27 04:07:36,714 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 04:07:36,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-27 04:07:36,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 04:07:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-27 04:07:36,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 04:07:36,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-27 04:07:36,730 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-27 04:07:36,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:36,731 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-27 04:07:36,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:07:36,731 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-27 04:07:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-27 04:07:36,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:36,735 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 04:07:36,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:07:36,736 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:36,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1660180111, now seen corresponding path program 5 times [2020-10-27 04:07:36,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:36,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905655014] [2020-10-27 04:07:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:36,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:38,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:38,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-10-27 04:07:38,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:07:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:38,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:38,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:38,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:38,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:38,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:38,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:38,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:38,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 04:07:38,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:07:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 04:07:38,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 04:07:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:38,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:38,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:38,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:38,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:38,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 04:07:38,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:38,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:38,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:38,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:38,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:38,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:38,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:38,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 04:07:38,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:38,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:38,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:38,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:38,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:38,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:07:38,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:38,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:38,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:38,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:38,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:38,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:38,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:38,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:38,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:38,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:38,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:38,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:38,658 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 51 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-27 04:07:38,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905655014] [2020-10-27 04:07:38,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:38,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 04:07:38,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252618604] [2020-10-27 04:07:38,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 04:07:38,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:38,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 04:07:38,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:07:38,661 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 12 states. [2020-10-27 04:07:39,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:39,120 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-27 04:07:39,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 04:07:39,121 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-27 04:07:39,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:39,125 INFO L225 Difference]: With dead ends: 40 [2020-10-27 04:07:39,125 INFO L226 Difference]: Without dead ends: 35 [2020-10-27 04:07:39,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:07:39,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-27 04:07:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-27 04:07:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 04:07:39,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-27 04:07:39,142 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-27 04:07:39,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:39,143 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-27 04:07:39,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 04:07:39,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-27 04:07:39,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 04:07:39,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:39,147 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 04:07:39,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:07:39,147 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:39,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:39,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1624338501, now seen corresponding path program 6 times [2020-10-27 04:07:39,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:39,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158819362] [2020-10-27 04:07:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:39,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:40,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:40,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:07:40,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1809 [2020-10-27 04:07:40,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:07:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 04:07:40,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:41,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:41,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:41,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 04:07:41,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:07:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 04:07:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:41,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 04:07:41,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:41,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 04:07:41,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:41,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 04:07:41,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:41,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:41,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 04:07:41,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:41,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:41,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:41,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:41,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:07:41,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:41,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:41,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:41,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:41,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:07:41,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 10 proven. 67 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-27 04:07:41,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158819362] [2020-10-27 04:07:41,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:41,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 04:07:41,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646508553] [2020-10-27 04:07:41,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:07:41,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:41,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:07:41,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:07:41,604 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 13 states. [2020-10-27 04:07:42,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:42,087 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-27 04:07:42,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 04:07:42,087 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-27 04:07:42,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:42,089 INFO L225 Difference]: With dead ends: 43 [2020-10-27 04:07:42,089 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 04:07:42,090 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 04:07:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 04:07:42,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-27 04:07:42,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 04:07:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-27 04:07:42,098 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-27 04:07:42,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:42,098 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-27 04:07:42,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:07:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-27 04:07:42,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 04:07:42,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:42,099 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 04:07:42,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:07:42,100 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:42,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:42,100 INFO L82 PathProgramCache]: Analyzing trace with hash 502547855, now seen corresponding path program 7 times [2020-10-27 04:07:42,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:42,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570437953] [2020-10-27 04:07:42,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:42,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:42,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:44,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:44,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:07:44,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2350 [2020-10-27 04:07:44,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:07:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 04:07:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:44,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:44,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:44,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:44,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:44,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:07:44,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:44,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:44,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:44,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:44,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:44,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:44,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:44,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:44,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 04:07:44,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:07:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:07:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:44,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:44,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:44,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:44,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:44,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:44,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-27 04:07:44,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:07:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:07:44,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:44,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:44,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:45,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:45,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:45,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:45,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 04:07:45,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:45,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:45,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:45,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:45,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:45,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:45,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:45,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:45,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:45,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 04:07:45,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:45,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:45,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:45,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:45,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:45,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:45,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:45,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 04:07:45,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:45,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:45,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:45,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:45,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:45,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:07:45,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:45,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:45,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:45,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:45,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:45,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:45,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:45,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:07:45,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:45,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:45,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:45,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:45,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:45,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:45,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:45,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:45,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:45,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:45,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:07:45,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:45,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:45,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:45,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-27 04:07:45,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570437953] [2020-10-27 04:07:45,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:45,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 04:07:45,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499399928] [2020-10-27 04:07:45,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:07:45,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:45,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:07:45,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:07:45,341 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 14 states. [2020-10-27 04:07:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:45,881 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-27 04:07:45,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:07:45,882 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-10-27 04:07:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:45,883 INFO L225 Difference]: With dead ends: 46 [2020-10-27 04:07:45,883 INFO L226 Difference]: Without dead ends: 41 [2020-10-27 04:07:45,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:07:45,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-27 04:07:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-27 04:07:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 04:07:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-27 04:07:45,891 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-27 04:07:45,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:45,892 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-27 04:07:45,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:07:45,892 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-27 04:07:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 04:07:45,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:45,893 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 04:07:45,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:07:45,894 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:45,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:45,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1459767611, now seen corresponding path program 8 times [2020-10-27 04:07:45,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:45,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539074094] [2020-10-27 04:07:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:45,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:46,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:48,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:48,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:07:48,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:48,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2781 [2020-10-27 04:07:48,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:48,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 04:07:48,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:48,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 04:07:48,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:48,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:48,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:48,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:48,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:48,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:48,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:48,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:48,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:48,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:48,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:48,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:48,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:48,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:48,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:48,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:07:48,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:48,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-27 04:07:48,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:48,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 04:07:48,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:48,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 04:07:48,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:48,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:48,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:49,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-27 04:07:49,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:07:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:07:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:49,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 04:07:49,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:07:49,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:07:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:49,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:49,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 04:07:49,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:49,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:49,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:49,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 04:07:49,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:49,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 04:07:49,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:49,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:49,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:07:49,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:49,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:49,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:49,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:07:49,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:49,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:49,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:49,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:49,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:49,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:07:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 12 proven. 123 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-27 04:07:49,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539074094] [2020-10-27 04:07:49,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:49,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 04:07:49,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897068928] [2020-10-27 04:07:49,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:07:49,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:49,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:07:49,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:07:49,804 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 15 states. [2020-10-27 04:07:50,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:50,389 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-27 04:07:50,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 04:07:50,390 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2020-10-27 04:07:50,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:50,391 INFO L225 Difference]: With dead ends: 49 [2020-10-27 04:07:50,391 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 04:07:50,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2020-10-27 04:07:50,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 04:07:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-27 04:07:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-27 04:07:50,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-27 04:07:50,405 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-27 04:07:50,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:50,406 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-27 04:07:50,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:07:50,406 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-27 04:07:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 04:07:50,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:50,408 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 04:07:50,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:07:50,408 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:50,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:50,409 INFO L82 PathProgramCache]: Analyzing trace with hash 273998991, now seen corresponding path program 9 times [2020-10-27 04:07:50,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:50,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765640347] [2020-10-27 04:07:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:50,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:53,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:53,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:07:53,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3315 [2020-10-27 04:07:53,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:07:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 04:07:53,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:53,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:53,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:53,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:53,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:53,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:53,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:53,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:53,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:53,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:07:54,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-27 04:07:54,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:07:54,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 04:07:54,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:07:54,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-27 04:07:54,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:07:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:07:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:54,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-27 04:07:54,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:07:54,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:07:54,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:54,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-27 04:07:54,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:07:54,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:07:54,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:54,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 04:07:54,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:54,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:54,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:54,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 04:07:54,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 04:07:54,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:54,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:07:54,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:54,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:54,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:07:54,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:54,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:54,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:54,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:54,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:54,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:07:54,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:54,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 26 proven. 145 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-27 04:07:54,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765640347] [2020-10-27 04:07:54,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:54,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 04:07:54,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604756209] [2020-10-27 04:07:54,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 04:07:54,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:54,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 04:07:54,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:07:54,923 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 16 states. [2020-10-27 04:07:55,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:55,585 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-27 04:07:55,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 04:07:55,585 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-10-27 04:07:55,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:55,587 INFO L225 Difference]: With dead ends: 52 [2020-10-27 04:07:55,587 INFO L226 Difference]: Without dead ends: 47 [2020-10-27 04:07:55,588 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 04:07:55,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-27 04:07:55,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-27 04:07:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 04:07:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-27 04:07:55,602 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-27 04:07:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:55,602 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-27 04:07:55,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 04:07:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-27 04:07:55,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 04:07:55,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:55,607 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 04:07:55,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:07:55,608 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:55,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:55,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1458107067, now seen corresponding path program 10 times [2020-10-27 04:07:55,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:55,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920931692] [2020-10-27 04:07:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:55,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:55,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:58,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:58,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:07:58,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:58,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3240 [2020-10-27 04:07:58,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 04:07:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 04:07:58,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:58,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:58,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:58,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:58,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:58,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:58,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:58,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:59,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:59,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:07:59,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-27 04:07:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 04:07:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 04:07:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:59,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:59,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:59,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:07:59,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:59,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-27 04:07:59,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:59,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:07:59,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:59,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:07:59,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:59,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:59,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:59,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:59,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:07:59,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:59,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-27 04:07:59,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:59,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:07:59,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:07:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:59,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:59,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:59,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:59,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:59,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:59,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-27 04:07:59,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:07:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:07:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:59,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:00,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:00,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:00,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:00,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:00,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:00,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:00,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 04:08:00,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:00,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:00,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:00,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:00,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:00,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:00,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:00,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:00,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:00,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:00,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:00,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 04:08:00,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:00,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:00,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:00,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:00,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:00,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:00,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:08:00,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:00,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:00,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:00,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:00,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:00,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:00,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:08:00,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:00,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:00,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:00,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:00,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:00,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:00,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:08:00,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:00,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:00,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:00,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 37 proven. 181 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-27 04:08:00,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920931692] [2020-10-27 04:08:00,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:00,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 04:08:00,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158057873] [2020-10-27 04:08:00,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 04:08:00,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:00,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 04:08:00,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:08:00,421 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 18 states. [2020-10-27 04:08:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:01,159 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-27 04:08:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:08:01,160 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 75 [2020-10-27 04:08:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:01,161 INFO L225 Difference]: With dead ends: 55 [2020-10-27 04:08:01,161 INFO L226 Difference]: Without dead ends: 50 [2020-10-27 04:08:01,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=298, Invalid=632, Unknown=0, NotChecked=0, Total=930 [2020-10-27 04:08:01,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-27 04:08:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-27 04:08:01,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-27 04:08:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-27 04:08:01,172 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 75 [2020-10-27 04:08:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:01,172 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-27 04:08:01,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 04:08:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-27 04:08:01,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 04:08:01,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:01,174 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 04:08:01,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 04:08:01,174 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:01,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:01,175 INFO L82 PathProgramCache]: Analyzing trace with hash -764791921, now seen corresponding path program 11 times [2020-10-27 04:08:01,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:01,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116504474] [2020-10-27 04:08:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:01,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:01,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:05,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3985 [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:08:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:05,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:08:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:05,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:05,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:08:05,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:08:05,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:08:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:08:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:05,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:08:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:05,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:05,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:05,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:08:05,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-27 04:08:05,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 04:08:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:08:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 04:08:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:05,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:05,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:05,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:08:05,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:05,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-27 04:08:05,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:08:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:08:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:05,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:05,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:05,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:05,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:08:05,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:05,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-27 04:08:05,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:08:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:08:05,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:05,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:05,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:05,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:05,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:05,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:08:06,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-27 04:08:06,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:08:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:08:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:06,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:06,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 04:08:06,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:06,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:06,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:06,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 04:08:06,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:06,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:06,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 04:08:06,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:06,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:06,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:06,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:08:06,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:06,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:06,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:06,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:06,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:08:06,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:06,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:06,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:06,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:06,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:06,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:06,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:08:06,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 27 proven. 223 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-27 04:08:06,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116504474] [2020-10-27 04:08:06,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:06,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 04:08:06,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677125119] [2020-10-27 04:08:06,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 04:08:06,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:06,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 04:08:06,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:08:06,581 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 18 states. [2020-10-27 04:08:07,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:07,396 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-27 04:08:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:08:07,397 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 81 [2020-10-27 04:08:07,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:07,399 INFO L225 Difference]: With dead ends: 58 [2020-10-27 04:08:07,399 INFO L226 Difference]: Without dead ends: 53 [2020-10-27 04:08:07,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=325, Invalid=667, Unknown=0, NotChecked=0, Total=992 [2020-10-27 04:08:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-27 04:08:07,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-27 04:08:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 04:08:07,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-10-27 04:08:07,416 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 81 [2020-10-27 04:08:07,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:07,419 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-10-27 04:08:07,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 04:08:07,419 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-10-27 04:08:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 04:08:07,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:07,423 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 04:08:07,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 04:08:07,424 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:07,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:07,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1532398651, now seen corresponding path program 12 times [2020-10-27 04:08:07,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:07,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036689119] [2020-10-27 04:08:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:07,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:07,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:11,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4024 [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 04:08:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:11,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:08:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:11,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:11,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:11,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:08:11,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:11,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:08:11,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:11,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:08:11,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:11,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:08:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:08:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:11,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:11,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 04:08:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:11,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:11,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:08:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:08:12,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-27 04:08:12,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:08:12,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:08:12,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:08:12,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:08:12,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 04:08:12,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:08:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:08:12,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:12,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 04:08:12,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:12,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:12,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:12,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 04:08:12,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:12,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:12,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:12,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 04:08:12,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:12,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:12,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:12,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:12,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:12,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:08:12,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:12,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:12,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:12,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:13,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:13,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:13,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:13,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:13,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:13,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:13,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 28 proven. 251 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-10-27 04:08:13,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036689119] [2020-10-27 04:08:13,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:13,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 04:08:13,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966314041] [2020-10-27 04:08:13,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:08:13,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:13,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:08:13,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:08:13,101 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 19 states. [2020-10-27 04:08:13,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:13,905 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-27 04:08:13,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:08:13,906 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 87 [2020-10-27 04:08:13,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:13,907 INFO L225 Difference]: With dead ends: 61 [2020-10-27 04:08:13,907 INFO L226 Difference]: Without dead ends: 56 [2020-10-27 04:08:13,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=370, Invalid=752, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 04:08:13,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-27 04:08:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-27 04:08:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-27 04:08:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-10-27 04:08:13,920 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2020-10-27 04:08:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:13,920 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-10-27 04:08:13,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:08:13,920 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-10-27 04:08:13,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-27 04:08:13,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:13,922 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 04:08:13,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 04:08:13,922 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:13,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:13,923 INFO L82 PathProgramCache]: Analyzing trace with hash -913821041, now seen corresponding path program 13 times [2020-10-27 04:08:13,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:13,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297916960] [2020-10-27 04:08:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:13,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:08:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:18,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:18,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:08:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:18,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:08:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:19,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:08:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:19,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:19,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:08:19,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-27 04:08:19,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:08:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:08:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 04:08:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:19,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:19,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:19,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:08:19,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:19,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-27 04:08:19,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:08:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:08:19,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:19,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:08:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:08:20,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:08:20,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-27 04:08:20,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:08:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:08:20,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:08:20,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-27 04:08:20,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:08:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:08:20,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 04:08:20,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:08:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:08:20,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:20,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 04:08:20,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:20,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 04:08:20,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:20,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 04:08:20,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:20,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:20,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:20,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:20,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:20,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:08:20,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:20,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:20,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:20,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:20,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:20,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:21,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:21,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:21,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:21,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:08:21,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:21,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:21,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:21,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:21,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:21,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:21,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:08:21,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:21,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:21,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:21,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:21,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:21,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:21,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:21,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:21,154 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 58 proven. 290 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-10-27 04:08:21,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297916960] [2020-10-27 04:08:21,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:21,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 04:08:21,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619302214] [2020-10-27 04:08:21,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 04:08:21,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:21,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 04:08:21,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:08:21,156 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 20 states. [2020-10-27 04:08:22,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:22,008 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-27 04:08:22,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 04:08:22,009 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 93 [2020-10-27 04:08:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:22,009 INFO L225 Difference]: With dead ends: 64 [2020-10-27 04:08:22,010 INFO L226 Difference]: Without dead ends: 59 [2020-10-27 04:08:22,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=418, Invalid=842, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 04:08:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-27 04:08:22,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-27 04:08:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-27 04:08:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-27 04:08:22,019 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 93 [2020-10-27 04:08:22,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:22,020 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-27 04:08:22,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 04:08:22,020 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-27 04:08:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 04:08:22,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:22,021 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 04:08:22,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 04:08:22,021 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:22,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:22,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1648421445, now seen corresponding path program 14 times [2020-10-27 04:08:22,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:22,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670892278] [2020-10-27 04:08:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:22,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:22,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:27,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:27,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:08:27,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:08:27,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:08:27,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 04:08:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:08:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 04:08:27,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:27,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:08:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:27,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:27,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:27,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:08:27,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:27,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:08:27,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:27,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:08:27,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:27,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:08:27,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:27,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:08:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:27,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:27,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:08:27,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-27 04:08:27,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 04:08:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:08:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-27 04:08:27,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:27,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:27,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:28,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:28,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:08:28,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-27 04:08:28,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:08:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:08:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:28,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:28,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:28,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:08:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:28,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:28,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:28,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:08:28,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:28,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-27 04:08:28,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:08:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:08:28,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:28,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:28,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:28,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:28,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:08:28,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:28,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-27 04:08:28,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:08:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:08:28,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:28,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:08:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:08:29,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 04:08:29,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:08:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:08:29,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 04:08:29,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:08:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:08:29,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:29,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:08:29,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:29,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 04:08:29,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:29,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 04:08:29,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:29,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:29,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:08:29,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:29,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:29,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:08:29,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:29,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:29,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:08:29,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:29,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:29,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:29,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:29,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:29,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:29,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 57 proven. 349 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2020-10-27 04:08:29,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670892278] [2020-10-27 04:08:29,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:29,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 04:08:29,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878053086] [2020-10-27 04:08:29,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 04:08:29,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:29,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 04:08:29,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:08:29,780 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 21 states. [2020-10-27 04:08:30,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:30,730 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-27 04:08:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 04:08:30,730 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 99 [2020-10-27 04:08:30,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:30,732 INFO L225 Difference]: With dead ends: 67 [2020-10-27 04:08:30,732 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 04:08:30,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=469, Invalid=937, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 04:08:30,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 04:08:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-27 04:08:30,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-27 04:08:30,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-27 04:08:30,741 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 99 [2020-10-27 04:08:30,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:30,742 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-27 04:08:30,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 04:08:30,742 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-27 04:08:30,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 04:08:30,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:30,743 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 04:08:30,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 04:08:30,743 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:30,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:30,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1745019279, now seen corresponding path program 15 times [2020-10-27 04:08:30,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:30,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773687179] [2020-10-27 04:08:30,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:30,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:35,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 04:08:35,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:35,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:08:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:35,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:35,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:08:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:35,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:08:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:35,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 04:08:36,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:36,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:36,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:36,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:08:36,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-27 04:08:36,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:08:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:08:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:36,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:36,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:37,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:37,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:08:37,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:37,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-27 04:08:37,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:08:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:08:37,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:37,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:37,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:08:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:37,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:37,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:37,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:08:37,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-27 04:08:37,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:08:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:08:37,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:37,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:37,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:37,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:08:37,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:37,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:08:37,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:37,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:08:38,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 04:08:38,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:08:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:38,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:08:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:38,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 04:08:38,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:38,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:08:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:38,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 04:08:38,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:38,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:38,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 04:08:38,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:38,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:38,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:08:38,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:38,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:38,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:38,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:08:38,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:38,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:38,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:38,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:38,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:38,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:38,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:38,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:38,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:38,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:38,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:38,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:38,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 66 proven. 410 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2020-10-27 04:08:38,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773687179] [2020-10-27 04:08:38,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:38,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 04:08:38,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844103486] [2020-10-27 04:08:38,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 04:08:38,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:38,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 04:08:38,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:08:38,751 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 23 states. [2020-10-27 04:08:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:39,756 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-27 04:08:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 04:08:39,758 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 105 [2020-10-27 04:08:39,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:39,759 INFO L225 Difference]: With dead ends: 70 [2020-10-27 04:08:39,759 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 04:08:39,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=543, Invalid=1097, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 04:08:39,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 04:08:39,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-27 04:08:39,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 04:08:39,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-27 04:08:39,772 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 105 [2020-10-27 04:08:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:39,773 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-27 04:08:39,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 04:08:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-27 04:08:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 04:08:39,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:39,774 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 04:08:39,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 04:08:39,775 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:39,775 INFO L82 PathProgramCache]: Analyzing trace with hash -345411387, now seen corresponding path program 16 times [2020-10-27 04:08:39,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:39,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610079998] [2020-10-27 04:08:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:39,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:40,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:44,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:44,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:08:44,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:08:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 04:08:44,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 04:08:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:08:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 04:08:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:44,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:08:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:44,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:44,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:44,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:08:44,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:44,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:08:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:08:44,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:44,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:08:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:44,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:45,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:45,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:08:45,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-27 04:08:45,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 04:08:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:08:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 04:08:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:45,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:45,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:45,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:45,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:08:45,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-27 04:08:45,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:08:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:08:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:45,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:45,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:45,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:45,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:08:45,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-27 04:08:45,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:08:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:08:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:45,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:45,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:46,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:46,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:08:46,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:46,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-27 04:08:46,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:46,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:08:46,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:46,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:08:46,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:46,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:46,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:46,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:46,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:08:46,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:46,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-27 04:08:46,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:08:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:08:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:46,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:46,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:46,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:46,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:08:46,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:46,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-27 04:08:46,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:08:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:08:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:46,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:46,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:46,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:46,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:08:46,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:46,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-27 04:08:46,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:46,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:08:46,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:46,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:08:46,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:46,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:46,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:46,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:46,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:08:46,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:46,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 04:08:46,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:46,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:08:46,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:46,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:08:46,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:46,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:08:47,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-27 04:08:47,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:08:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:08:47,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 04:08:47,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:08:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:08:47,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:47,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 04:08:47,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:47,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:47,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 04:08:47,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:47,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:47,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:08:47,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:47,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:47,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:47,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:08:47,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:47,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:47,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:08:47,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:47,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:47,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:47,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:47,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:47,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:47,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:47,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:47,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 69 proven. 456 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-10-27 04:08:47,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610079998] [2020-10-27 04:08:47,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:47,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 04:08:47,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63233925] [2020-10-27 04:08:47,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 04:08:47,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:47,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 04:08:47,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=326, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:08:47,664 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 23 states. [2020-10-27 04:08:48,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:48,688 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-27 04:08:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:08:48,689 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 111 [2020-10-27 04:08:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:48,690 INFO L225 Difference]: With dead ends: 73 [2020-10-27 04:08:48,690 INFO L226 Difference]: Without dead ends: 68 [2020-10-27 04:08:48,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=580, Invalid=1142, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 04:08:48,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-27 04:08:48,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-27 04:08:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-27 04:08:48,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-10-27 04:08:48,699 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 111 [2020-10-27 04:08:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:48,699 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-10-27 04:08:48,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 04:08:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-10-27 04:08:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 04:08:48,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:48,704 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 04:08:48,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 04:08:48,704 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:48,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:48,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1831747727, now seen corresponding path program 17 times [2020-10-27 04:08:48,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:48,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874027640] [2020-10-27 04:08:48,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:48,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:49,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:53,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:53,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:08:53,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:08:53,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 04:08:53,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:53,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:08:53,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:08:53,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-27 04:08:53,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:53,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:08:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:53,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:53,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:08:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:53,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:08:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:53,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:54,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:54,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:08:54,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:54,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-27 04:08:54,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:08:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:08:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 04:08:54,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:54,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:54,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:54,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:54,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:08:54,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:54,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-27 04:08:54,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:08:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:08:54,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:54,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:54,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:55,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:55,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:08:55,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-27 04:08:55,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:08:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:08:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:55,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:55,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:08:55,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:55,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:55,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:55,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:55,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:08:55,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-27 04:08:55,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:08:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:08:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:55,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:55,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:56,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:08:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:56,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:56,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:56,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:08:56,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:56,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-27 04:08:56,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:08:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:08:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:56,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:56,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:56,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:56,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:08:56,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:56,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-27 04:08:56,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:56,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:08:56,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:56,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:08:56,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:56,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:56,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:56,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:56,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:08:56,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:56,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 04:08:56,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:08:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:08:56,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:56,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:56,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:56,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:56,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:08:56,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 04:08:56,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:08:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:08:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:56,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:56,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:56,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:08:56,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 04:08:56,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:08:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:08:56,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:56,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:57,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:57,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:08:57,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:57,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 04:08:57,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:57,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:08:57,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:57,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:08:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:57,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:57,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:57,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:57,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:08:57,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:08:57,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:08:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:08:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:57,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:57,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:57,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:57,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:08:57,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:57,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 04:08:57,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:08:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:08:57,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:57,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:57,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:57,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:57,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:08:57,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:57,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:08:57,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:57,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:08:57,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:57,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:08:57,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:57,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:57,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:57,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:57,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:08:57,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:57,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:08:57,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:08:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:57,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:08:57,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:57,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:57,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:57,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:08:57,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:08:57,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:08:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:08:57,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-27 04:08:57,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:08:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:57,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:57,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:08:57,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:08:57,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:08:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:08:57,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:08:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:08:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:08:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:08:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:08:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 66 proven. 490 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-27 04:08:57,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874027640] [2020-10-27 04:08:57,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:08:57,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 04:08:57,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989663652] [2020-10-27 04:08:57,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 04:08:57,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:08:57,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 04:08:57,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2020-10-27 04:08:57,454 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-10-27 04:08:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:08:58,574 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-27 04:08:58,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:08:58,575 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 117 [2020-10-27 04:08:58,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:08:58,576 INFO L225 Difference]: With dead ends: 76 [2020-10-27 04:08:58,576 INFO L226 Difference]: Without dead ends: 71 [2020-10-27 04:08:58,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=662, Invalid=1318, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 04:08:58,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-27 04:08:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-27 04:08:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 04:08:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-27 04:08:58,583 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 117 [2020-10-27 04:08:58,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:08:58,583 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-27 04:08:58,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 04:08:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-27 04:08:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-27 04:08:58,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:08:58,585 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 04:08:58,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 04:08:58,585 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:08:58,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:08:58,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1286539077, now seen corresponding path program 18 times [2020-10-27 04:08:58,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:08:58,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138167595] [2020-10-27 04:08:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:08:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:08:58,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:08:58,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:03,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:03,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:09:03,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:03,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 04:09:03,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 04:09:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 04:09:03,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:03,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:03,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:03,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:03,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:03,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:03,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:03,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:04,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-27 04:09:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:04,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:04,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:04,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:09:04,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:04,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:04,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:09:05,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:05,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-27 04:09:05,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:09:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:09:05,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:05,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:05,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-27 04:09:05,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:09:05,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:05,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:09:05,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:05,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:05,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:05,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:05,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-27 04:09:05,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:09:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:09:05,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:05,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:05,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:06,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 04:09:06,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:06,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:06,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-27 04:09:06,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:06,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:06,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-27 04:09:06,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 04:09:06,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:06,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:06,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:06,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:06,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:06,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:06,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 04:09:06,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:06,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:06,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:06,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:06,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:07,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:07,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 04:09:07,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:07,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:07,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 04:09:07,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:07,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:07,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:07,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:09:07,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:07,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:07,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:09:07,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:07,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:07,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:09:07,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:07,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:07,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:07,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:07,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:07,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:07,667 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 107 proven. 573 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2020-10-27 04:09:07,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138167595] [2020-10-27 04:09:07,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:07,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 04:09:07,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961026772] [2020-10-27 04:09:07,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 04:09:07,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:07,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 04:09:07,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=425, Unknown=0, NotChecked=0, Total=650 [2020-10-27 04:09:07,669 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 26 states. [2020-10-27 04:09:08,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:08,862 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-27 04:09:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 04:09:08,862 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 123 [2020-10-27 04:09:08,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:08,864 INFO L225 Difference]: With dead ends: 79 [2020-10-27 04:09:08,864 INFO L226 Difference]: Without dead ends: 74 [2020-10-27 04:09:08,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=729, Invalid=1433, Unknown=0, NotChecked=0, Total=2162 [2020-10-27 04:09:08,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-27 04:09:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-27 04:09:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 04:09:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-27 04:09:08,881 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 123 [2020-10-27 04:09:08,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:08,881 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-27 04:09:08,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 04:09:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-27 04:09:08,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-27 04:09:08,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:08,886 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 04:09:08,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 04:09:08,886 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:08,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:08,887 INFO L82 PathProgramCache]: Analyzing trace with hash 626937743, now seen corresponding path program 19 times [2020-10-27 04:09:08,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:08,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482897379] [2020-10-27 04:09:08,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:08,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:09,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:13,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:13,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:09:13,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:13,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 04:09:13,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 04:09:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 04:09:13,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:13,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:13,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:13,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:13,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:13,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:13,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:13,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:13,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:13,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:13,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-27 04:09:14,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:14,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:14,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:15,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:15,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:09:15,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-10-27 04:09:15,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:09:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:09:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:15,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:15,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:09:15,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:15,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:09:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:15,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:16,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:16,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:16,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:16,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:16,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-27 04:09:16,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:09:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:16,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:09:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:16,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:16,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:16,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:16,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:16,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-27 04:09:16,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:16,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:09:16,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:16,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:09:16,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:16,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:16,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:16,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:16,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 04:09:16,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:16,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:16,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:16,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:16,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:16,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:17,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-27 04:09:17,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:17,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-27 04:09:17,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:17,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:17,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:17,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-27 04:09:17,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:17,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:17,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:17,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-27 04:09:17,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:17,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:17,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:17,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:18,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 04:09:18,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:18,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:18,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 04:09:18,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:18,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:09:18,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:18,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:18,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:18,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 04:09:18,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:18,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 04:09:18,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:18,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:18,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:09:18,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:18,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:18,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:09:18,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:18,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:09:18,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:18,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:18,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:18,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:18,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:18,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:18,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 106 proven. 620 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-10-27 04:09:18,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482897379] [2020-10-27 04:09:18,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:18,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 04:09:18,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401699168] [2020-10-27 04:09:18,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 04:09:18,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:18,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 04:09:18,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2020-10-27 04:09:18,679 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 26 states. [2020-10-27 04:09:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:19,943 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-27 04:09:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 04:09:19,944 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 129 [2020-10-27 04:09:19,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:19,946 INFO L225 Difference]: With dead ends: 82 [2020-10-27 04:09:19,946 INFO L226 Difference]: Without dead ends: 77 [2020-10-27 04:09:19,948 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 04:09:19,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-27 04:09:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-27 04:09:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-27 04:09:19,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-27 04:09:19,954 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 129 [2020-10-27 04:09:19,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:19,955 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-27 04:09:19,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 04:09:19,955 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-27 04:09:19,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 04:09:19,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:19,957 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 04:09:19,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 04:09:19,957 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:19,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:19,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1436396997, now seen corresponding path program 20 times [2020-10-27 04:09:19,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:19,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317912291] [2020-10-27 04:09:19,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:19,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:24,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:24,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:09:24,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:24,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:09:24,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-27 04:09:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 04:09:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:25,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:25,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:09:25,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:25,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-27 04:09:25,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-27 04:09:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-27 04:09:25,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:25,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:25,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:26,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:26,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:09:26,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:26,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-27 04:09:26,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:09:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:09:26,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:26,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:26,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:09:26,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:26,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:26,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:27,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:27,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:09:27,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:27,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-27 04:09:27,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:09:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:09:27,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:27,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:27,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:27,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:09:27,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:27,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-27 04:09:27,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:09:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:09:27,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:27,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:27,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:28,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:09:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:28,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:28,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:28,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:28,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:28,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:28,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-27 04:09:28,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:09:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:09:28,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:28,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:28,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-27 04:09:28,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:28,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:28,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:28,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:28,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:28,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-27 04:09:28,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:28,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:28,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:29,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-27 04:09:29,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:29,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:29,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 04:09:29,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:29,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 04:09:29,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:29,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:29,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 04:09:29,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:29,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:29,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 04:09:29,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:29,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:09:29,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:29,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:29,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:09:29,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:29,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:29,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:29,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:29,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:29,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:29,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:09:29,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:30,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:09:30,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:30,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:30,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:30,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:30,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:30,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:30,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:30,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:30,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 70 proven. 748 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2020-10-27 04:09:30,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317912291] [2020-10-27 04:09:30,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:30,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 04:09:30,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8130117] [2020-10-27 04:09:30,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 04:09:30,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:30,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 04:09:30,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=488, Unknown=0, NotChecked=0, Total=756 [2020-10-27 04:09:30,221 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 28 states. [2020-10-27 04:09:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:31,534 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-10-27 04:09:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 04:09:31,535 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 135 [2020-10-27 04:09:31,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:31,536 INFO L225 Difference]: With dead ends: 85 [2020-10-27 04:09:31,537 INFO L226 Difference]: Without dead ends: 80 [2020-10-27 04:09:31,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=866, Invalid=1684, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 04:09:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-27 04:09:31,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-27 04:09:31,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-27 04:09:31,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-10-27 04:09:31,544 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 135 [2020-10-27 04:09:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:31,544 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-10-27 04:09:31,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 04:09:31,545 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-10-27 04:09:31,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 04:09:31,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:31,546 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 04:09:31,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 04:09:31,546 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:31,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:31,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1444475249, now seen corresponding path program 21 times [2020-10-27 04:09:31,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:31,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607190106] [2020-10-27 04:09:31,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:31,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:31,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:36,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:36,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:36,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:36,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:36,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:36,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:36,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:37,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:37,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:09:37,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-10-27 04:09:37,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 04:09:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-27 04:09:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:37,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:37,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:37,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 628 [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:09:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:38,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:38,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:38,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 549 [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:09:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:38,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:38,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:39,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:39,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:09:39,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:39,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-27 04:09:39,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:09:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:09:39,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:39,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:39,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:39,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:09:39,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:39,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:39,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-27 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:09:40,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:40,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:40,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-27 04:09:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:09:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:09:40,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:40,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:40,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:41,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:41,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:41,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-27 04:09:41,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:41,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:41,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:41,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:41,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:41,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-27 04:09:41,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:41,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:41,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:41,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:41,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 04:09:41,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:41,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:41,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:41,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:41,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-27 04:09:41,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:41,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:41,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:41,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:41,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:41,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:41,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 04:09:41,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:41,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:41,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:41,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:41,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:41,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:41,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:41,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:41,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:41,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-27 04:09:41,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:41,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:41,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:41,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:42,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 04:09:42,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:42,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 04:09:42,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:42,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:42,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 04:09:42,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:42,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:42,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:09:42,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:09:42,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:42,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:09:42,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:42,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:09:42,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:42,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:42,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:42,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:42,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:42,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:42,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:42,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:09:42,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:42,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 88 proven. 815 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2020-10-27 04:09:42,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607190106] [2020-10-27 04:09:42,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:42,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 04:09:42,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197485654] [2020-10-27 04:09:42,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 04:09:42,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:42,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 04:09:42,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=471, Unknown=0, NotChecked=0, Total=756 [2020-10-27 04:09:42,598 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 28 states. [2020-10-27 04:09:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:43,919 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-27 04:09:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 04:09:43,922 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 141 [2020-10-27 04:09:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:43,924 INFO L225 Difference]: With dead ends: 88 [2020-10-27 04:09:43,924 INFO L226 Difference]: Without dead ends: 83 [2020-10-27 04:09:43,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=910, Invalid=1742, Unknown=0, NotChecked=0, Total=2652 [2020-10-27 04:09:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-27 04:09:43,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-27 04:09:43,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-27 04:09:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-10-27 04:09:43,932 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 141 [2020-10-27 04:09:43,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:43,932 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-10-27 04:09:43,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 04:09:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-10-27 04:09:43,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 04:09:43,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:43,934 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 04:09:43,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 04:09:43,934 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:43,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:43,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1489069125, now seen corresponding path program 22 times [2020-10-27 04:09:43,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:43,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259262136] [2020-10-27 04:09:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:43,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:44,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:48,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 04:09:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:49,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:09:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:49,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:49,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:49,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:09:49,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:49,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:09:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:09:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:49,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:09:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:49,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-27 04:09:49,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:49,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:49,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:50,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:50,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:09:50,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:50,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-10-27 04:09:50,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:50,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 04:09:50,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:50,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 04:09:50,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:50,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:50,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:09:51,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-27 04:09:51,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:09:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:09:51,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:51,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:51,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:09:51,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-10-27 04:09:51,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:09:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:09:51,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:51,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:51,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:52,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:52,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:09:52,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:52,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-10-27 04:09:52,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:09:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:52,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:09:52,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:52,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:52,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:52,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:09:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:52,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:52,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:53,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:53,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:09:53,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-27 04:09:53,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:09:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:09:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:53,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:53,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:53,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:53,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:09:53,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:53,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-27 04:09:53,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:09:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:09:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:53,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:53,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:53,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:53,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:09:53,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:53,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-27 04:09:53,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:09:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:53,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:09:53,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:53,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:53,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:09:54,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:54,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-27 04:09:54,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:09:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:54,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:09:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:54,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:54,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:09:54,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:54,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:54,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:09:54,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:54,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-27 04:09:54,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:09:54,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:09:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:54,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:54,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:09:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:54,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:54,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:54,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:54,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:09:54,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:54,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-27 04:09:54,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:54,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:09:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:09:54,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:09:55,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-27 04:09:55,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:09:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:09:55,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:09:55,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 04:09:55,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:09:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:09:55,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:09:55,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 04:09:55,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:09:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:09:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:09:55,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 04:09:55,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:09:55,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:09:55,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:09:55,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:09:55,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:09:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:09:55,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:09:55,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:09:55,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:09:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:09:55,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:09:55,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:09:55,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:09:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:09:55,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:09:55,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:09:55,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:09:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:09:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:09:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:55,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:55,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:09:55,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:09:55,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:09:55,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:09:55,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:09:55,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:09:55,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:09:55,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:09:55,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:09:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 112 proven. 889 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2020-10-27 04:09:55,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259262136] [2020-10-27 04:09:55,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:09:55,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 04:09:55,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410132276] [2020-10-27 04:09:55,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 04:09:55,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:09:55,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 04:09:55,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=558, Unknown=0, NotChecked=0, Total=870 [2020-10-27 04:09:55,826 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 30 states. [2020-10-27 04:09:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:09:57,309 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-10-27 04:09:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 04:09:57,309 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 147 [2020-10-27 04:09:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:09:57,311 INFO L225 Difference]: With dead ends: 91 [2020-10-27 04:09:57,311 INFO L226 Difference]: Without dead ends: 86 [2020-10-27 04:09:57,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1012, Invalid=1958, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 04:09:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-27 04:09:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-27 04:09:57,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-27 04:09:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2020-10-27 04:09:57,318 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 147 [2020-10-27 04:09:57,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:09:57,319 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2020-10-27 04:09:57,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 04:09:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2020-10-27 04:09:57,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 04:09:57,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:09:57,320 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 04:09:57,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 04:09:57,321 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:09:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:09:57,321 INFO L82 PathProgramCache]: Analyzing trace with hash 555515279, now seen corresponding path program 23 times [2020-10-27 04:09:57,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:09:57,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109042164] [2020-10-27 04:09:57,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:09:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:09:57,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:09:57,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:02,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:02,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 04:10:02,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 04:10:02,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:10:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-27 04:10:02,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:02,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:02,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:02,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:02,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:02,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:03,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:03,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 04:10:03,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:03,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 803 [2020-10-27 04:10:03,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:10:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-27 04:10:03,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:03,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:03,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:04,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-27 04:10:04,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:04,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:04,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 04:10:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:04,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:04,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:05,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:10:05,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:05,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:05,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:06,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:06,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:10:06,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:06,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-10-27 04:10:06,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:10:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:10:06,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:06,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:06,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:06,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:06,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:10:06,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-27 04:10:06,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:10:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:10:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:06,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:06,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:07,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:07,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:07,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:07,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-27 04:10:07,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:10:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:10:07,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:07,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:07,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:07,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:07,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:07,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:07,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-27 04:10:07,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:07,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:07,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:07,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:07,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:07,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:08,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:08,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:08,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:08,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-10-27 04:10:08,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:08,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:08,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:08,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:08,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:08,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:08,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:08,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:08,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:08,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:08,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-27 04:10:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:08,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:08,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:08,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:08,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:08,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:08,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-27 04:10:08,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:08,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:08,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:09,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-27 04:10:09,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:09,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:09,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:09,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-27 04:10:09,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:09,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:09,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 04:10:09,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:09,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:09,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:09,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 04:10:09,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:09,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:09,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:09,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 04:10:09,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:09,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:09,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:09,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 04:10:09,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:09,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:09,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:09,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:09,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:09,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:09,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:09,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:10,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:10,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:10,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:10,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 04:10:10,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:10,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:10,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:10,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:10,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:10,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:10:10,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:10,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:10:10,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:10:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:10:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:10,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:10,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:10,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:10,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:10:10,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:10:10,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:10:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:10:10,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:10,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:10,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:10,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:10,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:10:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:10:10,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:10:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:10:10,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:10,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:10,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:10,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:10,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:10:10,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:10,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:10,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:10,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:10,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:10:10,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 85 proven. 865 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2020-10-27 04:10:10,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109042164] [2020-10-27 04:10:10,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:10,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-27 04:10:10,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426060102] [2020-10-27 04:10:10,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-27 04:10:10,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:10,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-27 04:10:10,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=593, Unknown=0, NotChecked=0, Total=930 [2020-10-27 04:10:10,447 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand 31 states. [2020-10-27 04:10:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:11,985 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-10-27 04:10:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 04:10:11,985 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 153 [2020-10-27 04:10:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:11,987 INFO L225 Difference]: With dead ends: 94 [2020-10-27 04:10:11,987 INFO L226 Difference]: Without dead ends: 89 [2020-10-27 04:10:11,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1091, Invalid=2101, Unknown=0, NotChecked=0, Total=3192 [2020-10-27 04:10:11,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-27 04:10:11,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-10-27 04:10:11,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-27 04:10:11,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2020-10-27 04:10:11,995 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 153 [2020-10-27 04:10:11,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:11,995 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2020-10-27 04:10:11,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-27 04:10:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2020-10-27 04:10:11,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-27 04:10:11,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:11,997 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 04:10:11,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 04:10:11,998 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:11,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:11,998 INFO L82 PathProgramCache]: Analyzing trace with hash -341431611, now seen corresponding path program 24 times [2020-10-27 04:10:11,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:11,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969873589] [2020-10-27 04:10:11,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:12,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:12,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 04:10:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:17,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:17,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:17,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:17,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:17,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:17,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:17,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:17,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:17,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:10:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:17,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:17,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:17,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-27 04:10:17,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-10-27 04:10:17,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-27 04:10:17,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:17,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-27 04:10:17,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:18,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:18,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:18,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 04:10:18,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:18,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-10-27 04:10:18,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-27 04:10:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-27 04:10:18,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:18,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:18,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:19,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-27 04:10:19,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:19,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:19,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:20,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 706 [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 04:10:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:20,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:20,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:21,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:21,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 04:10:21,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:21,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-10-27 04:10:21,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:21,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 04:10:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 04:10:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:21,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:21,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:21,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:21,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 04:10:21,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:21,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-27 04:10:21,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:21,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 04:10:21,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 04:10:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:21,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:21,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:10:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:22,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:22,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:22,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:22,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 04:10:22,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-27 04:10:22,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 04:10:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 04:10:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:22,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:22,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 04:10:23,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-27 04:10:23,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 04:10:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 04:10:23,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:10:23,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-27 04:10:23,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 04:10:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 04:10:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:23,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:10:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:23,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:23,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:24,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:24,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 04:10:24,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:24,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-27 04:10:24,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:10:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:10:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:24,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:24,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:24,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:24,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 04:10:24,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-27 04:10:24,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 04:10:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 04:10:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:24,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:24,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:24,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:10:24,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-27 04:10:24,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 04:10:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:10:24,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:24,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:24,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:24,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:24,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:10:24,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:24,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-27 04:10:24,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:10:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 04:10:24,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:24,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:24,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:24,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:24,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:10:24,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 04:10:24,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:24,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 04:10:24,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:24,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:10:24,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:24,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:24,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:10:25,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-27 04:10:25,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:10:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:10:25,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:10:25,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 04:10:25,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:10:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:10:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:10:25,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 04:10:25,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:10:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:10:25,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:10:25,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 04:10:25,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:10:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:10:25,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:10:25,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:10:25,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:10:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:10:25,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:10:25,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:10:25,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:10:25,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:10:25,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:10:25,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:10:25,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:10:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:10:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:10:25,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:10:25,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:10:25,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:10:25,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:10:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:25,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:25,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:10:25,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:10:25,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:10:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 134 proven. 999 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2020-10-27 04:10:25,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969873589] [2020-10-27 04:10:25,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:25,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-27 04:10:25,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270340683] [2020-10-27 04:10:25,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-27 04:10:25,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:25,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-27 04:10:25,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=629, Unknown=0, NotChecked=0, Total=992 [2020-10-27 04:10:25,842 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 32 states. [2020-10-27 04:10:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:27,385 INFO L93 Difference]: Finished difference Result 97 states and 98 transitions. [2020-10-27 04:10:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 04:10:27,385 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 159 [2020-10-27 04:10:27,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:27,387 INFO L225 Difference]: With dead ends: 97 [2020-10-27 04:10:27,387 INFO L226 Difference]: Without dead ends: 92 [2020-10-27 04:10:27,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1173, Invalid=2249, Unknown=0, NotChecked=0, Total=3422 [2020-10-27 04:10:27,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-27 04:10:27,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-27 04:10:27,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-27 04:10:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 93 transitions. [2020-10-27 04:10:27,396 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 93 transitions. Word has length 159 [2020-10-27 04:10:27,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:27,396 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 93 transitions. [2020-10-27 04:10:27,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-27 04:10:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 93 transitions. [2020-10-27 04:10:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-27 04:10:27,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:27,398 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 04:10:27,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 04:10:27,398 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:27,398 INFO L82 PathProgramCache]: Analyzing trace with hash -28140401, now seen corresponding path program 25 times [2020-10-27 04:10:27,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:27,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266883515] [2020-10-27 04:10:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 04:10:27,423 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 04:10:27,423 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 04:10:27,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 04:10:27,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:10:27 BoogieIcfgContainer [2020-10-27 04:10:27,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 04:10:27,453 INFO L168 Benchmark]: Toolchain (without parser) took 179231.35 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 127.0 MB in the beginning and 666.6 MB in the end (delta: -539.6 MB). Peak memory consumption was 252.8 MB. Max. memory is 8.0 GB. [2020-10-27 04:10:27,454 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 04:10:27,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 117.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 04:10:27,455 INFO L168 Benchmark]: Boogie Preprocessor took 31.86 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 116.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 04:10:27,455 INFO L168 Benchmark]: RCFGBuilder took 361.78 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 103.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 04:10:27,456 INFO L168 Benchmark]: TraceAbstraction took 178585.55 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 103.4 MB in the beginning and 666.6 MB in the end (delta: -563.2 MB). Peak memory consumption was 228.7 MB. Max. memory is 8.0 GB. [2020-10-27 04:10:27,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 237.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 117.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.86 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 116.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 361.78 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 103.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 178585.55 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 103.4 MB in the beginning and 666.6 MB in the end (delta: -563.2 MB). Peak memory consumption was 228.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int input = 25; [L13] CALL, EXPR id(input) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND TRUE x==0 [L7] return 0; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) [L13] int result = id(input); [L14] COND TRUE result == 25 [L15] CALL reach_error() [L4] __assert_fail("0", "id_i25_o25-2.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 178.4s, OverallIterations: 26, TraceHistogramMax: 26, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 354 SDtfs, 2282 SDslu, 787 SDs, 0 SdLazy, 2435 SolverSat, 1262 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1475 GetRequests, 668 SyntacticMatches, 2 SemanticMatches, 805 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6291 ImplicationChecksByTransitivity, 22.7s 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, 25 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 155.8s InterpolantComputationTime, 2340 NumberOfCodeBlocks, 2340 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2150 ConstructedInterpolants, 0 QuantifiedInterpolants, 662228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 6316/15000 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 incorrect! Received shutdown request...