/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:32:37,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:32:37,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:32:37,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:32:37,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:32:37,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:32:37,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:32:37,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:32:37,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:32:37,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:32:37,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:32:37,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:32:37,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:32:37,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:32:37,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:32:37,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:32:37,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:32:37,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:32:37,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:32:37,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:32:37,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:32:37,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:32:37,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:32:37,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:32:37,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:32:37,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:32:37,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:32:37,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:32:37,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:32:37,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-27 22:32:37,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:32:37,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:32:37,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:32:37,433 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 22:32:37,483 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:32:37,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:32:37,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:32:37,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:32:37,488 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:32:37,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:32:37,489 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:32:37,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:32:37,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:32:37,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:32:37,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:32:37,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:32:37,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:32:37,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:32:37,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:32:37,492 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:32:37,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:32:37,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:32:37,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:32:37,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:32:37,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:32:37,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:32:37,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:32:37,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:32:37,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:32:37,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:32:37,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:32:37,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:32:37,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:32:37,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:32:37,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:32:37,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:32:37,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:32:37,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:32:37,932 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:32:37,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-1.c [2020-10-27 22:32:38,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6875f795b/c60f39ba74f244419ea731bb33fedffa/FLAG517f3a5ee [2020-10-27 22:32:38,615 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:32:38,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_15-1.c [2020-10-27 22:32:38,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6875f795b/c60f39ba74f244419ea731bb33fedffa/FLAG517f3a5ee [2020-10-27 22:32:38,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6875f795b/c60f39ba74f244419ea731bb33fedffa [2020-10-27 22:32:39,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:32:39,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:32:39,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:32:39,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:32:39,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:32:39,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9aae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39, skipping insertion in model container [2020-10-27 22:32:39,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:32:39,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:32:39,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:32:39,221 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:32:39,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:32:39,256 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:32:39,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39 WrapperNode [2020-10-27 22:32:39,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:32:39,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:32:39,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:32:39,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:32:39,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (1/1) ... [2020-10-27 22:32:39,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:32:39,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:32:39,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:32:39,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:32:39,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (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 22:32:39,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:32:39,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:32:39,364 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:32:39,365 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-10-27 22:32:39,365 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-10-27 22:32:39,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:32:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:32:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:32:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:32:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:32:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:32:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-10-27 22:32:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-10-27 22:32:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:32:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:32:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:32:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:32:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:32:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:32:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:32:39,659 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:32:39,660 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 22:32:39,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:32:39 BoogieIcfgContainer [2020-10-27 22:32:39,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:32:39,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:32:39,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:32:39,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:32:39,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:32:39" (1/3) ... [2020-10-27 22:32:39,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76748f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:32:39, skipping insertion in model container [2020-10-27 22:32:39,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:32:39" (2/3) ... [2020-10-27 22:32:39,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76748f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:32:39, skipping insertion in model container [2020-10-27 22:32:39,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:32:39" (3/3) ... [2020-10-27 22:32:39,672 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-1.c [2020-10-27 22:32:39,703 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:32:39,707 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:32:39,722 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:32:39,755 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:32:39,755 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:32:39,755 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:32:39,755 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:32:39,755 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:32:39,756 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:32:39,756 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:32:39,756 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:32:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-27 22:32:39,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 22:32:39,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:32:39,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:32:39,782 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:32:39,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:32:39,788 INFO L82 PathProgramCache]: Analyzing trace with hash 219823047, now seen corresponding path program 1 times [2020-10-27 22:32:39,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:32:39,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994020680] [2020-10-27 22:32:39,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:32:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:39,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:40,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:40,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:40,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:32:40,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:32:40,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 615 [2020-10-27 22:32:40,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:32:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:32:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:32:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:32:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:32:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:40,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:40,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:40,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:32:40,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:32:40,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:40,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:32:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:32:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:40,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:40,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:40,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:32:40,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:40,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:32:40,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:32:40,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:40,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:32:40,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:32:40,745 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 22:32:40,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994020680] [2020-10-27 22:32:40,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:32:40,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 22:32:40,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095937922] [2020-10-27 22:32:40,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 22:32:40,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:32:40,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 22:32:40,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:32:40,773 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-10-27 22:32:41,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:32:41,136 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2020-10-27 22:32:41,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 22:32:41,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 22:32:41,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:32:41,150 INFO L225 Difference]: With dead ends: 53 [2020-10-27 22:32:41,150 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 22:32:41,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:32:41,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 22:32:41,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-27 22:32:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 22:32:41,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-10-27 22:32:41,209 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 15 [2020-10-27 22:32:41,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:32:41,209 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-10-27 22:32:41,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 22:32:41,210 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-10-27 22:32:41,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 22:32:41,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:32:41,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:32:41,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:32:41,212 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:32:41,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:32:41,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1220716726, now seen corresponding path program 1 times [2020-10-27 22:32:41,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:32:41,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41194865] [2020-10-27 22:32:41,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:32:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:41,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:41,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:41,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:41,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 22:32:41,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:32:41,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-27 22:32:41,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:32:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:32:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:32:41,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:41,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:32:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:41,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:41,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:41,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:32:41,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:41,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:32:41,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:41,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:32:41,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:32:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:41,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:41,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:41,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:32:41,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:32:41,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:32:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:32:41,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:41,572 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 22:32:41,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41194865] [2020-10-27 22:32:41,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:32:41,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 22:32:41,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330596918] [2020-10-27 22:32:41,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 22:32:41,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:32:41,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 22:32:41,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:32:41,577 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 6 states. [2020-10-27 22:32:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:32:41,877 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2020-10-27 22:32:41,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 22:32:41,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-27 22:32:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:32:41,880 INFO L225 Difference]: With dead ends: 39 [2020-10-27 22:32:41,880 INFO L226 Difference]: Without dead ends: 34 [2020-10-27 22:32:41,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:32:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-27 22:32:41,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-10-27 22:32:41,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 22:32:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-10-27 22:32:41,894 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 16 [2020-10-27 22:32:41,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:32:41,895 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-10-27 22:32:41,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 22:32:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-10-27 22:32:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 22:32:41,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:32:41,898 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:32:41,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:32:41,898 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:32:41,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:32:41,899 INFO L82 PathProgramCache]: Analyzing trace with hash 2083135015, now seen corresponding path program 1 times [2020-10-27 22:32:41,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:32:41,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732179900] [2020-10-27 22:32:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:32:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:41,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:41,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:41,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:42,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:44,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 22:32:44,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:32:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2166 [2020-10-27 22:32:44,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:32:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 22:32:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 22:32:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:44,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:32:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:44,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:44,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:32:44,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:44,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:32:44,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:44,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:32:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:44,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:44,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 22:32:44,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:32:44,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-27 22:32:44,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:44,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:32:44,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:32:44,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:32:44,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:32:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:44,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:44,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:32:44,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:44,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:32:44,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:32:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:32:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:32:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:32:44,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:32:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:44,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:44,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:32:44,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:32:44,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:32:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:44,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:32:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 22:32:44,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732179900] [2020-10-27 22:32:44,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:32:44,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 22:32:44,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541652519] [2020-10-27 22:32:44,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:32:44,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:32:44,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:32:44,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:32:44,448 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 9 states. [2020-10-27 22:32:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:32:44,790 INFO L93 Difference]: Finished difference Result 61 states and 81 transitions. [2020-10-27 22:32:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:32:44,791 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-10-27 22:32:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:32:44,793 INFO L225 Difference]: With dead ends: 61 [2020-10-27 22:32:44,793 INFO L226 Difference]: Without dead ends: 36 [2020-10-27 22:32:44,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:32:44,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-27 22:32:44,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-10-27 22:32:44,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-27 22:32:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2020-10-27 22:32:44,805 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 28 [2020-10-27 22:32:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:32:44,805 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-10-27 22:32:44,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:32:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2020-10-27 22:32:44,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 22:32:44,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:32:44,808 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:32:44,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:32:44,809 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:32:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:32:44,809 INFO L82 PathProgramCache]: Analyzing trace with hash 752879968, now seen corresponding path program 1 times [2020-10-27 22:32:44,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:32:44,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030290317] [2020-10-27 22:32:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:32:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:44,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:44,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:45,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:45,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 22:32:45,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:32:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-10-27 22:32:45,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:32:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 22:32:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 22:32:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:45,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:32:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:45,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:45,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:45,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:32:45,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:45,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:32:45,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:45,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:45,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:45,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:45,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:45,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:32:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:45,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:45,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:45,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:32:45,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 22:32:45,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:32:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:45,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 22:32:45,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:46,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:32:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:46,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:46,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:46,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:32:46,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:32:46,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:32:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:32:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:46,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:32:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:46,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:46,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:32:46,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:46,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:32:46,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:32:46,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:46,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:32:46,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:32:46,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030290317] [2020-10-27 22:32:46,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:32:46,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:32:46,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595721959] [2020-10-27 22:32:46,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:32:46,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:32:46,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:32:46,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:32:46,079 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 10 states. [2020-10-27 22:32:46,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:32:46,539 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-10-27 22:32:46,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 22:32:46,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-27 22:32:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:32:46,544 INFO L225 Difference]: With dead ends: 47 [2020-10-27 22:32:46,544 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 22:32:46,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:32:46,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 22:32:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2020-10-27 22:32:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-27 22:32:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-10-27 22:32:46,568 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 29 [2020-10-27 22:32:46,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:32:46,568 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-10-27 22:32:46,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:32:46,569 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2020-10-27 22:32:46,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 22:32:46,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:32:46,576 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:32:46,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:32:46,577 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:32:46,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:32:46,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1703344845, now seen corresponding path program 1 times [2020-10-27 22:32:46,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:32:46,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238953257] [2020-10-27 22:32:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:32:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:46,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:46,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:46,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:46,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:47,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:48,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 22:32:48,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:32:48,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1708 [2020-10-27 22:32:48,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:32:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 22:32:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:32:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:32:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:48,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:48,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:32:48,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:48,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:32:48,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:48,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:48,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:32:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:48,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:48,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 22:32:48,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:32:48,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-27 22:32:48,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:48,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:32:48,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:32:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:32:48,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:48,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:32:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:48,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:32:48,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:32:48,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:32:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:32:48,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:48,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:32:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:48,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:48,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:48,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:32:48,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:32:48,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:32:48,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:32:48,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:32:48,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:32:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 22:32:48,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238953257] [2020-10-27 22:32:48,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:32:48,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:32:48,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924358615] [2020-10-27 22:32:48,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:32:48,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:32:48,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:32:48,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:32:48,675 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 10 states. [2020-10-27 22:32:49,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:32:49,162 INFO L93 Difference]: Finished difference Result 74 states and 102 transitions. [2020-10-27 22:32:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 22:32:49,163 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-27 22:32:49,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:32:49,164 INFO L225 Difference]: With dead ends: 74 [2020-10-27 22:32:49,164 INFO L226 Difference]: Without dead ends: 41 [2020-10-27 22:32:49,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:32:49,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-27 22:32:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-27 22:32:49,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 22:32:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-10-27 22:32:49,176 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 30 [2020-10-27 22:32:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:32:49,176 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-10-27 22:32:49,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:32:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-10-27 22:32:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-27 22:32:49,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:32:49,179 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:32:49,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:32:49,179 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:32:49,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:32:49,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2070859795, now seen corresponding path program 1 times [2020-10-27 22:32:49,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:32:49,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047776127] [2020-10-27 22:32:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:32:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:49,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:49,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:49,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:49,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:49,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:49,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:51,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:54,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:54,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 22:32:54,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 22:32:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 22:32:54,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:32:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 22:32:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 22:32:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:54,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:32:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:54,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:54,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:54,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:32:54,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:32:54,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:32:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:54,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:54,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:32:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:54,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:54,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:54,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:54,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:55,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 22:32:55,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:32:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-27 22:32:55,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:32:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 22:32:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:32:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:55,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:32:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:55,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 22:32:55,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:55,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:32:55,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:32:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:32:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:32:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:55,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:32:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:55,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:55,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:32:55,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:55,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:32:55,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:32:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:32:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:32:55,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:55,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:32:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:55,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:55,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:32:55,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:55,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:32:55,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:32:55,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:55,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 22:32:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:55,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:32:55,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:32:55,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:32:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:32:55,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:32:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:32:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:32:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:32:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:32:55,313 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 22:32:55,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047776127] [2020-10-27 22:32:55,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:32:55,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 22:32:55,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102136490] [2020-10-27 22:32:55,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:32:55,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:32:55,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:32:55,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:32:55,317 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 9 states. [2020-10-27 22:32:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:32:55,736 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-10-27 22:32:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:32:55,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-10-27 22:32:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:32:55,739 INFO L225 Difference]: With dead ends: 77 [2020-10-27 22:32:55,739 INFO L226 Difference]: Without dead ends: 43 [2020-10-27 22:32:55,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:32:55,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-27 22:32:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-27 22:32:55,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-27 22:32:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2020-10-27 22:32:55,768 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 41 [2020-10-27 22:32:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:32:55,769 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2020-10-27 22:32:55,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:32:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2020-10-27 22:32:55,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 22:32:55,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:32:55,777 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:32:55,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:32:55,778 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:32:55,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:32:55,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1960607334, now seen corresponding path program 1 times [2020-10-27 22:32:55,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:32:55,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860999075] [2020-10-27 22:32:55,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:32:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:32:55,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:55,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:56,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:56,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:56,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:32:58,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:00,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:00,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-27 22:33:00,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 22:33:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 22:33:00,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:00,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:33:00,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 22:33:00,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 22:33:00,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:00,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:00,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:00,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:00,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:00,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:00,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:33:00,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:00,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:00,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:00,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:00,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:01,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 22:33:01,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:33:01,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-27 22:33:01,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:33:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:33:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:33:01,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:01,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:01,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:01,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:01,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:33:01,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 22:33:01,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:33:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:33:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:01,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:01,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:01,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:01,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:33:01,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 22:33:01,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:33:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:01,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:01,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:01,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:01,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:01,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:01,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:01,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:01,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:01,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:01,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:01,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:01,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:01,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:33:01,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:01,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:33:01,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:33:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:01,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 22:33:02,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860999075] [2020-10-27 22:33:02,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:33:02,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 22:33:02,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382420752] [2020-10-27 22:33:02,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:33:02,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:33:02,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:33:02,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:33:02,019 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 12 states. [2020-10-27 22:33:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:33:02,747 INFO L93 Difference]: Finished difference Result 91 states and 128 transitions. [2020-10-27 22:33:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 22:33:02,748 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-10-27 22:33:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:33:02,750 INFO L225 Difference]: With dead ends: 91 [2020-10-27 22:33:02,750 INFO L226 Difference]: Without dead ends: 55 [2020-10-27 22:33:02,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2020-10-27 22:33:02,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-27 22:33:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-27 22:33:02,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-27 22:33:02,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2020-10-27 22:33:02,769 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 42 [2020-10-27 22:33:02,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:33:02,770 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions. [2020-10-27 22:33:02,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:33:02,770 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2020-10-27 22:33:02,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-27 22:33:02,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:33:02,772 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:33:02,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:33:02,772 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:33:02,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:33:02,773 INFO L82 PathProgramCache]: Analyzing trace with hash 488187527, now seen corresponding path program 1 times [2020-10-27 22:33:02,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:33:02,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933848633] [2020-10-27 22:33:02,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:33:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:02,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:02,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:03,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:05,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:05,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 22:33:05,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:33:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2606 [2020-10-27 22:33:05,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:33:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 22:33:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 22:33:05,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:05,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:05,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:05,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:05,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:05,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:33:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:05,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:05,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:05,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:05,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:33:05,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:05,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 22:33:05,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:33:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 22:33:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:05,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:05,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:05,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:05,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:05,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:05,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:33:05,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:33:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 22:33:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:05,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:05,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:05,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:05,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:05,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:05,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:33:05,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:33:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:05,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:33:05,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:05,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:05,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:05,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:05,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:33:05,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:33:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:05,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:05,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:05,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:05,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:05,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:33:05,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:33:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:05,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 22:33:05,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933848633] [2020-10-27 22:33:05,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:33:05,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 22:33:05,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087943277] [2020-10-27 22:33:05,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:33:05,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:33:05,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:33:05,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:33:05,712 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand 13 states. [2020-10-27 22:33:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:33:06,421 INFO L93 Difference]: Finished difference Result 72 states and 107 transitions. [2020-10-27 22:33:06,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 22:33:06,422 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-10-27 22:33:06,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:33:06,424 INFO L225 Difference]: With dead ends: 72 [2020-10-27 22:33:06,424 INFO L226 Difference]: Without dead ends: 67 [2020-10-27 22:33:06,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:33:06,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-27 22:33:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-10-27 22:33:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 22:33:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 100 transitions. [2020-10-27 22:33:06,446 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 100 transitions. Word has length 43 [2020-10-27 22:33:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:33:06,446 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 100 transitions. [2020-10-27 22:33:06,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:33:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 100 transitions. [2020-10-27 22:33:06,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 22:33:06,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:33:06,448 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:33:06,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:33:06,448 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:33:06,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:33:06,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1996320528, now seen corresponding path program 1 times [2020-10-27 22:33:06,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:33:06,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047549507] [2020-10-27 22:33:06,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:33:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:06,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:06,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:06,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:06,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:06,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:07,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:11,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:11,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:11,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:11,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:11,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:11,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:33:11,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:11,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:11,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:11,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:11,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:11,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:12,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 22:33:12,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:33:12,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-27 22:33:12,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:12,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:33:12,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 22:33:12,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:33:12,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:12,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:12,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:12,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 22:33:12,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:33:12,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 22:33:12,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:33:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:33:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:33:12,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:12,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:12,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:12,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:12,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:12,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:33:12,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:33:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:12,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:33:12,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:12,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:12,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:12,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:33:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:33:12,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:33:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:33:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:12,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:12,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 22:33:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:12,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:12,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:12,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:12,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:12,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:33:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 22:33:12,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047549507] [2020-10-27 22:33:12,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:33:12,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:33:12,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151601988] [2020-10-27 22:33:12,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:33:12,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:33:12,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:33:12,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:33:12,212 INFO L87 Difference]: Start difference. First operand 65 states and 100 transitions. Second operand 10 states. [2020-10-27 22:33:12,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:33:12,706 INFO L93 Difference]: Finished difference Result 123 states and 200 transitions. [2020-10-27 22:33:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:33:12,707 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-10-27 22:33:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:33:12,711 INFO L225 Difference]: With dead ends: 123 [2020-10-27 22:33:12,711 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 22:33:12,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:33:12,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 22:33:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-27 22:33:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 22:33:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 95 transitions. [2020-10-27 22:33:12,730 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 95 transitions. Word has length 44 [2020-10-27 22:33:12,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:33:12,731 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 95 transitions. [2020-10-27 22:33:12,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:33:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 95 transitions. [2020-10-27 22:33:12,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 22:33:12,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:33:12,733 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:33:12,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 22:33:12,733 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:33:12,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:33:12,734 INFO L82 PathProgramCache]: Analyzing trace with hash -573233300, now seen corresponding path program 1 times [2020-10-27 22:33:12,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:33:12,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386258474] [2020-10-27 22:33:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:33:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:12,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:12,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:13,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:13,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:13,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:13,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:15,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:15,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:17,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:17,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 22:33:17,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 22:33:17,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 22:33:17,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:17,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:33:17,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 22:33:17,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:33:17,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:17,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:17,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:17,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:17,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:17,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:17,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:33:17,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:17,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:17,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:17,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:17,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:17,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:17,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:17,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:18,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:18,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:18,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:19,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:19,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 22:33:19,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:33:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-10-27 22:33:19,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:33:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 22:33:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:33:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:19,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:19,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:19,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:19,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:19,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:33:19,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:19,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:19,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:19,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:19,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:20,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:20,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:33:20,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 22:33:20,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:33:20,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:20,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:20,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:20,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:20,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:20,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:20,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:20,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:20,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:20,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:20,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:20,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:20,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:20,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:20,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:20,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:20,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:20,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:20,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:20,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:20,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:20,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:33:20,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:20,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:33:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:33:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 22:33:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:20,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:20,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:20,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:20,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:33:20,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:20,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:20,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:33:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:20,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-27 22:33:20,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386258474] [2020-10-27 22:33:20,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:33:20,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 22:33:20,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603765383] [2020-10-27 22:33:20,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:33:20,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:33:20,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:33:20,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:33:20,214 INFO L87 Difference]: Start difference. First operand 65 states and 95 transitions. Second operand 9 states. [2020-10-27 22:33:20,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:33:20,708 INFO L93 Difference]: Finished difference Result 123 states and 197 transitions. [2020-10-27 22:33:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:33:20,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-10-27 22:33:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:33:20,710 INFO L225 Difference]: With dead ends: 123 [2020-10-27 22:33:20,710 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 22:33:20,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:33:20,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 22:33:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-27 22:33:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 22:33:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2020-10-27 22:33:20,726 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 55 [2020-10-27 22:33:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:33:20,726 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2020-10-27 22:33:20,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:33:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2020-10-27 22:33:20,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 22:33:20,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:33:20,729 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:33:20,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 22:33:20,729 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:33:20,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:33:20,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1609471852, now seen corresponding path program 1 times [2020-10-27 22:33:20,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:33:20,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528101766] [2020-10-27 22:33:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:33:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:20,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:20,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:21,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:21,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:21,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:21,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:23,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:23,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:33:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 22:33:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 22:33:25,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:25,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:25,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:25,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:25,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:25,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:25,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:25,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:25,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:25,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:25,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:25,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:26,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:26,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:26,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:26,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:27,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:28,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:29,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:30,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:33:30,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 29 [2020-10-27 22:33:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 22:33:30,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:33:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-27 22:33:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 22:33:30,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:30,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:30,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:30,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:30,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:30,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:30,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:30,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:30,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:33:30,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:30,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:30,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:30,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:30,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:30,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:33:30,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:30,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:30,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:30,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:30,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:30,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:30,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:30,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:31,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:31,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:33,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 22:33:33,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:33:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2575 [2020-10-27 22:33:33,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:33:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:33:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:33:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:33,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:33,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:33:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:33,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:33,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:33,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:33,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:33,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:33,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:33,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:33:33,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 22:33:33,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:33:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:33:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:33:33,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:33,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:33,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:33,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:33,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:33:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:33:33,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:33:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:33,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:33,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:33,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:33,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:33,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:33,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:33,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:33,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:33,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 67 proven. 14 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-27 22:33:33,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528101766] [2020-10-27 22:33:33,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:33:33,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 22:33:33,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532391080] [2020-10-27 22:33:33,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:33:33,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:33:33,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:33:33,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:33:33,673 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand 12 states. [2020-10-27 22:33:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:33:34,496 INFO L93 Difference]: Finished difference Result 132 states and 209 transitions. [2020-10-27 22:33:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 22:33:34,497 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-10-27 22:33:34,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:33:34,500 INFO L225 Difference]: With dead ends: 132 [2020-10-27 22:33:34,500 INFO L226 Difference]: Without dead ends: 63 [2020-10-27 22:33:34,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:33:34,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-27 22:33:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2020-10-27 22:33:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-27 22:33:34,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 76 transitions. [2020-10-27 22:33:34,517 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 76 transitions. Word has length 83 [2020-10-27 22:33:34,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:33:34,518 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 76 transitions. [2020-10-27 22:33:34,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:33:34,518 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 76 transitions. [2020-10-27 22:33:34,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-27 22:33:34,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:33:34,519 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:33:34,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 22:33:34,520 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:33:34,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:33:34,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1077697206, now seen corresponding path program 2 times [2020-10-27 22:33:34,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:33:34,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733524331] [2020-10-27 22:33:34,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:33:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:34,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:36,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:36,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:36,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:36,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:36,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:37,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:39,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 22:33:39,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-27 22:33:39,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:33:39,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:33:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 22:33:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 22:33:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:39,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:39,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:39,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:39,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:33:39,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:39,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:39,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:39,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:39,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:40,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 22:33:44,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:44,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:44,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:33:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:44,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:44,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:44,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:44,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:33:44,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:33:44,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:33:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:44,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:44,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:44,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:44,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:44,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:44,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:44,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:45,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:45,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:33:45,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:33:45,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-27 22:33:45,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:33:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:33:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 22:33:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:45,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:45,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:45,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:45,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:45,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:45,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:33:45,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:45,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:45,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:45,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:33:45,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:45,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:45,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:45,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:45,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:45,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:45,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:33:45,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:45,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:45,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:45,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:45,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:45,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:45,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:45,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:33:45,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:45,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:45,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:45,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:45,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:33:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:33:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:33:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 22 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-27 22:33:45,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733524331] [2020-10-27 22:33:45,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:33:45,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 22:33:45,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477964558] [2020-10-27 22:33:45,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:33:45,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:33:45,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:33:45,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:33:45,206 INFO L87 Difference]: Start difference. First operand 60 states and 76 transitions. Second operand 13 states. [2020-10-27 22:33:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:33:46,167 INFO L93 Difference]: Finished difference Result 117 states and 163 transitions. [2020-10-27 22:33:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:33:46,169 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 70 [2020-10-27 22:33:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:33:46,170 INFO L225 Difference]: With dead ends: 117 [2020-10-27 22:33:46,171 INFO L226 Difference]: Without dead ends: 64 [2020-10-27 22:33:46,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:33:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-27 22:33:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-27 22:33:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-27 22:33:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2020-10-27 22:33:46,201 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 70 [2020-10-27 22:33:46,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:33:46,202 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2020-10-27 22:33:46,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:33:46,202 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2020-10-27 22:33:46,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 22:33:46,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:33:46,207 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:33:46,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 22:33:46,207 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:33:46,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:33:46,208 INFO L82 PathProgramCache]: Analyzing trace with hash -2073039210, now seen corresponding path program 1 times [2020-10-27 22:33:46,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:33:46,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443216654] [2020-10-27 22:33:46,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:33:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:46,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:46,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:48,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:51,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:51,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 22:33:51,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:33:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 22:33:51,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:33:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-27 22:33:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 22:33:51,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:51,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:51,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:51,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:51,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:51,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:51,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:51,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:51,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:51,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:51,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:51,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:51,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:51,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:51,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:52,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:52,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 22:33:52,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:33:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1278 [2020-10-27 22:33:52,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:33:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:33:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 22:33:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:52,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:52,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:52,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:52,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:52,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:52,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:52,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:53,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:33:53,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:33:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-27 22:33:53,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:33:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:33:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:53,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:53,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:53,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:33:53,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:33:53,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 22:33:53,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:33:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:33:53,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:33:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:53,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:53,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:53,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:53,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:53,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:53,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:53,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:53,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:53,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:53,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:33:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:33:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:33:53,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:33:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:53,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:33:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:53,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:53,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:53,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:53,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:33:53,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:33:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:53,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:33:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:53,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:53,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:33:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-27 22:33:53,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443216654] [2020-10-27 22:33:53,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:33:53,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 22:33:53,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857541506] [2020-10-27 22:33:53,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:33:53,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:33:53,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:33:53,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:33:53,637 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand 14 states. [2020-10-27 22:33:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:33:54,614 INFO L93 Difference]: Finished difference Result 121 states and 162 transitions. [2020-10-27 22:33:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 22:33:54,614 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-10-27 22:33:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:33:54,616 INFO L225 Difference]: With dead ends: 121 [2020-10-27 22:33:54,616 INFO L226 Difference]: Without dead ends: 64 [2020-10-27 22:33:54,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:33:54,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-27 22:33:54,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-27 22:33:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-27 22:33:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2020-10-27 22:33:54,628 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 57 [2020-10-27 22:33:54,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:33:54,629 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2020-10-27 22:33:54,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:33:54,629 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2020-10-27 22:33:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-27 22:33:54,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:33:54,630 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:33:54,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 22:33:54,631 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:33:54,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:33:54,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1406199094, now seen corresponding path program 3 times [2020-10-27 22:33:54,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:33:54,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076354063] [2020-10-27 22:33:54,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:33:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:54,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:54,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:54,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:59,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 22:33:59,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:33:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:59,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:59,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:33:59,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:33:59,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:33:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:33:59,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:33:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:00,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:34:04,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:34:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 22:34:04,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:34:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:34:04,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:34:04,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:04,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:04,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:34:04,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 22:34:04,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:04,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:04,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:04,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:04,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:04,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:04,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:04,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:04,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:04,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:04,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:04,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:04,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:04,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:04,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:04,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:34:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:04,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:34:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 22:34:04,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:34:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:34:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:04,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:04,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:04,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:04,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:04,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:04,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:04,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:04,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:04,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:34:04,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:04,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:34:04,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:04,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:04,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 22:34:04,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076354063] [2020-10-27 22:34:04,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:34:04,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:34:04,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553438867] [2020-10-27 22:34:04,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:34:04,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:34:04,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:34:04,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:34:04,922 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand 10 states. [2020-10-27 22:34:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:34:05,511 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2020-10-27 22:34:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 22:34:05,512 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-10-27 22:34:05,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:34:05,514 INFO L225 Difference]: With dead ends: 87 [2020-10-27 22:34:05,514 INFO L226 Difference]: Without dead ends: 70 [2020-10-27 22:34:05,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:34:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-27 22:34:05,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-27 22:34:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-27 22:34:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2020-10-27 22:34:05,527 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 70 [2020-10-27 22:34:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:34:05,528 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2020-10-27 22:34:05,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:34:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2020-10-27 22:34:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-27 22:34:05,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:34:05,529 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:34:05,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 22:34:05,530 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:34:05,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:34:05,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1562902855, now seen corresponding path program 2 times [2020-10-27 22:34:05,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:34:05,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154034363] [2020-10-27 22:34:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:34:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:05,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:06,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:06,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:06,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:06,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:06,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:07,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:07,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:10,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 22:34:10,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-27 22:34:10,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 22:34:10,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:34:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 22:34:10,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:34:10,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:10,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:34:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:10,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:10,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:34:10,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:10,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:10,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:10,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:10,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:10,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:10,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:34:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:10,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:10,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:13,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:15,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:15,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 22:34:15,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-27 22:34:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:34:15,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 22:34:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:34:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 22:34:15,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:15,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:15,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:15,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:15,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:15,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:15,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:16,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:16,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:34:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 850 [2020-10-27 22:34:16,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:34:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:34:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:16,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:16,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:16,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:34:16,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 22:34:16,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:16,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:34:16,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:16,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:34:16,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:16,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:16,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:16,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:16,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:16,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:34:16,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:16,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:16,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:16,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:16,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:16,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:34:16,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:16,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:34:16,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:16,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:16,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:16,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:16,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:16,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:16,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:34:16,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:16,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:34:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:16,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:16,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:17,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:17,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:34:17,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-27 22:34:17,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:17,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:34:17,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:34:17,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 22:34:17,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:17,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:17,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:17,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:17,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:34:17,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 22:34:17,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:17,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:34:17,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:17,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:34:17,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:17,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:17,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:17,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:17,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:34:17,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:34:17,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:34:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:34:17,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:17,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:17,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:17,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:17,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:17,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:17,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:34:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:17,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:17,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:17,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:17,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:17,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:17,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:17,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:17,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-27 22:34:17,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154034363] [2020-10-27 22:34:17,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:34:17,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 22:34:17,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501370273] [2020-10-27 22:34:17,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 22:34:17,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:34:17,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 22:34:17,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:34:17,521 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand 17 states. [2020-10-27 22:34:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:34:18,700 INFO L93 Difference]: Finished difference Result 143 states and 199 transitions. [2020-10-27 22:34:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:34:18,700 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 84 [2020-10-27 22:34:18,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:34:18,702 INFO L225 Difference]: With dead ends: 143 [2020-10-27 22:34:18,702 INFO L226 Difference]: Without dead ends: 80 [2020-10-27 22:34:18,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2020-10-27 22:34:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-27 22:34:18,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2020-10-27 22:34:18,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-27 22:34:18,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2020-10-27 22:34:18,718 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 84 [2020-10-27 22:34:18,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:34:18,719 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2020-10-27 22:34:18,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 22:34:18,719 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2020-10-27 22:34:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-27 22:34:18,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:34:18,721 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:34:18,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 22:34:18,721 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:34:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:34:18,722 INFO L82 PathProgramCache]: Analyzing trace with hash -694000658, now seen corresponding path program 4 times [2020-10-27 22:34:18,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:34:18,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944803105] [2020-10-27 22:34:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:34:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:18,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:18,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:18,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:18,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:18,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:18,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:18,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:19,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:19,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:19,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:19,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:19,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:22,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:23,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 22:34:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-27 22:34:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 22:34:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:34:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 22:34:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 22:34:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:23,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:34:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:23,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:23,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:34:23,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:23,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:23,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:34:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:23,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:24,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:24,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:25,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:25,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:28,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:28,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:34:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-27 22:34:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 22:34:28,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:28,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:34:28,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 22:34:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 22:34:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:28,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:28,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:28,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:28,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:28,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:28,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:29,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:29,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 22:34:29,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:34:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-27 22:34:29,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:34:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:34:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 22:34:29,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:29,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:29,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:29,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:29,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:29,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:29,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:30,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:30,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:34:30,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-10-27 22:34:30,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:34:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:34:30,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:30,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:30,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:30,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:30,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:34:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 22:34:30,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:34:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:34:30,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:30,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:30,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:30,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:30,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:34:30,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:34:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:34:30,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:30,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:30,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:34:30,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:30,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:30,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:30,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:34:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:30,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:34:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:30,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 22:34:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:30,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 22:34:35,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:34:35,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 22:34:35,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 22:34:35,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:35,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:35,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:35,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:35,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:35,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:34:35,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:35,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:35,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:34:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:35,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:35,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:35,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:34:35,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:34:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:35,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:35,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:35,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:35,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:35,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:35,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:35,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 47 proven. 147 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-10-27 22:34:35,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944803105] [2020-10-27 22:34:35,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:34:35,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 22:34:35,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610565526] [2020-10-27 22:34:35,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:34:35,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:34:35,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:34:35,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:34:35,642 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand 12 states. [2020-10-27 22:34:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:34:36,475 INFO L93 Difference]: Finished difference Result 152 states and 212 transitions. [2020-10-27 22:34:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 22:34:36,475 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 139 [2020-10-27 22:34:36,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:34:36,477 INFO L225 Difference]: With dead ends: 152 [2020-10-27 22:34:36,477 INFO L226 Difference]: Without dead ends: 82 [2020-10-27 22:34:36,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-10-27 22:34:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-27 22:34:36,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2020-10-27 22:34:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-27 22:34:36,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2020-10-27 22:34:36,489 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 139 [2020-10-27 22:34:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:34:36,492 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2020-10-27 22:34:36,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:34:36,492 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2020-10-27 22:34:36,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-27 22:34:36,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:34:36,500 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 14, 14, 13, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:34:36,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 22:34:36,501 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:34:36,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:34:36,501 INFO L82 PathProgramCache]: Analyzing trace with hash -589856953, now seen corresponding path program 5 times [2020-10-27 22:34:36,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:34:36,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298889487] [2020-10-27 22:34:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:34:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:36,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:36,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:36,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:36,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:36,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:36,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:36,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:36,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:39,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:39,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:39,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:39,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:41,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-27 22:34:41,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 22:34:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 22:34:41,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 22:34:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 22:34:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 22:34:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:41,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:34:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:41,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:41,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:34:41,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:41,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:41,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:34:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:41,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:41,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:42,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:42,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 22:34:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 22:34:46,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:46,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:46,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:46,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:46,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:46,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:46,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:47,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:47,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:47,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:47,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:47,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:48,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:48,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:48,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:48,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:48,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:48,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:51,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:51,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 22:34:51,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-27 22:34:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 22:34:51,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 22:34:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:34:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 22:34:51,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:51,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:51,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:51,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:51,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:34:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:51,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:52,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:52,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:52,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:52,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:34:52,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:34:52,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:52,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:52,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:52,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:52,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:52,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:52,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:52,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:52,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:52,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:52,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:52,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:34:52,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:52,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:52,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:52,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:52,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:34:52,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:34:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:34:52,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:34:52,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:34:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:52,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:52,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:34:57,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:34:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 22:34:57,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:34:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:34:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:34:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:57,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:34:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-27 22:34:57,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:34:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:34:57,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:34:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:34:57,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:57,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:34:57,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:34:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:34:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:34:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:34:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:34:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:34:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:57,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:34:57,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 22:34:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:34:57,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:34:57,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:57,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:34:57,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:57,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:34:57,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:57,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:34:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:57,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:34:57,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:57,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:34:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:34:57,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:34:57,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:34:57,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:34:57,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:34:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:34:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:34:57,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:34:57,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:34:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:57,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:57,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:34:57,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:34:57,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:34:57,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:34:57,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:34:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:34:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:34:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:34:57,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:34:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 124 proven. 288 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2020-10-27 22:34:57,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298889487] [2020-10-27 22:34:57,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:34:57,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 22:34:57,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076974602] [2020-10-27 22:34:57,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 22:34:57,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:34:57,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 22:34:57,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:34:57,642 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand 15 states. [2020-10-27 22:34:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:34:59,051 INFO L93 Difference]: Finished difference Result 162 states and 231 transitions. [2020-10-27 22:34:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 22:34:59,051 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 220 [2020-10-27 22:34:59,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:34:59,053 INFO L225 Difference]: With dead ends: 162 [2020-10-27 22:34:59,053 INFO L226 Difference]: Without dead ends: 88 [2020-10-27 22:34:59,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2020-10-27 22:34:59,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-27 22:34:59,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2020-10-27 22:34:59,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-27 22:34:59,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2020-10-27 22:34:59,066 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 220 [2020-10-27 22:34:59,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:34:59,067 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2020-10-27 22:34:59,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 22:34:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2020-10-27 22:34:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-27 22:34:59,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:34:59,070 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:34:59,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 22:34:59,070 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:34:59,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:34:59,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1449273840, now seen corresponding path program 6 times [2020-10-27 22:34:59,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:34:59,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835257550] [2020-10-27 22:34:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:34:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:34:59,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:34:59,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:00,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:00,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:02,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:02,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:04,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 22:35:04,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-27 22:35:04,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:35:04,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 22:35:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 22:35:04,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-27 22:35:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:04,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:35:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:04,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:04,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:35:04,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:04,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:35:04,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:04,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:04,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:04,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:04,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:35:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:04,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:04,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:05,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:05,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:09,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:09,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-27 22:35:09,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 22:35:09,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:35:09,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:35:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:35:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:35:09,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:09,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:09,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:09,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:09,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:09,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:09,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:35:14,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:35:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 22:35:14,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:35:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:35:14,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:35:14,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:14,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:35:14,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 22:35:14,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:35:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:14,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:14,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:35:14,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:14,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:14,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:35:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:14,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:35:14,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 22:35:14,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:35:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:35:14,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:14,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:35:14,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:14,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:14,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:14,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:35:14,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:35:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:14,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:14,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:35:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:14,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:14,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:15,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:15,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:19,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-27 22:35:19,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:35:19,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 22:35:19,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:35:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:35:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 22:35:19,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:19,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:19,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:19,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:22,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:22,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:35:22,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 22:35:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3311 [2020-10-27 22:35:22,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:35:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:35:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:22,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:22,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:22,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:22,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:35:23,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:35:23,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 765 [2020-10-27 22:35:23,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:35:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:35:23,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:23,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:35:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 22:35:23,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:35:23,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:35:23,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:23,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:35:23,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:35:23,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:35:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:35:23,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:23,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:23,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:23,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:35:23,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:35:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:23,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:23,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:35:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:23,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:23,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:35:23,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:35:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:23,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:35:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:23,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:35:23,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:35:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:23,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:35:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 22:35:23,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:35:23,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:35:23,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:35:23,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:23,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:23,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:35:23,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:23,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:23,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:23,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:23,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:23,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:23,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:35:23,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:35:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 250 proven. 142 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-27 22:35:23,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835257550] [2020-10-27 22:35:23,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:35:23,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 22:35:23,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794236346] [2020-10-27 22:35:23,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 22:35:23,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:35:23,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 22:35:23,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:35:23,997 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand 21 states. [2020-10-27 22:35:25,534 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-10-27 22:35:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:35:26,350 INFO L93 Difference]: Finished difference Result 189 states and 268 transitions. [2020-10-27 22:35:26,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 22:35:26,351 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 165 [2020-10-27 22:35:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:35:26,354 INFO L225 Difference]: With dead ends: 189 [2020-10-27 22:35:26,354 INFO L226 Difference]: Without dead ends: 111 [2020-10-27 22:35:26,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=285, Invalid=1521, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 22:35:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-27 22:35:26,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2020-10-27 22:35:26,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-27 22:35:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 142 transitions. [2020-10-27 22:35:26,375 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 142 transitions. Word has length 165 [2020-10-27 22:35:26,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:35:26,376 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 142 transitions. [2020-10-27 22:35:26,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 22:35:26,376 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 142 transitions. [2020-10-27 22:35:26,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-27 22:35:26,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:35:26,379 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:35:26,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 22:35:26,380 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:35:26,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:35:26,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1001167155, now seen corresponding path program 7 times [2020-10-27 22:35:26,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:35:26,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297074617] [2020-10-27 22:35:26,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:35:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:26,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:26,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:27,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:27,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:28,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:28,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:28,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:29,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:30,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 28 [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 22:35:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 22:35:31,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:31,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:35:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:31,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:31,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:31,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:35:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:31,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:31,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:32,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:32,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:32,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:36,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 22:35:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:36,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:36,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:36,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:36,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:35:41,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:35:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 22:35:41,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:35:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:35:41,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 22:35:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:41,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:41,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:41,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:41,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:41,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:41,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:41,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:41,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:41,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:35:41,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:41,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:35:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:41,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:41,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:41,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:41,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:41,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:35:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:35:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:41,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:41,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:35:41,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:41,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:41,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:41,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:35:41,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:35:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:41,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:41,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:35:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:41,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:41,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:42,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:42,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:42,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:42,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:42,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:42,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:46,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:46,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:35:46,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 22:35:46,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 22:35:46,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:35:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:35:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:35:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:46,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:46,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:46,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:46,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:46,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:46,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:35:47,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:35:47,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-27 22:35:47,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:35:47,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:35:47,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:47,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:47,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:35:47,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 22:35:47,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:35:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:35:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:47,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:47,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:35:47,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:35:47,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:35:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:35:47,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:47,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:47,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:35:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:35:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:47,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:47,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:47,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:35:47,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:47,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:35:47,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:35:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:47,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:35:47,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:47,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:35:47,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:35:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:35:47,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:35:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:47,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:47,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:47,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:35:47,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:47,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:35:47,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:47,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:47,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:47,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:47,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 144 proven. 106 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-10-27 22:35:47,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297074617] [2020-10-27 22:35:47,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:35:47,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 22:35:47,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966593376] [2020-10-27 22:35:47,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 22:35:47,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:35:47,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 22:35:47,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:35:47,680 INFO L87 Difference]: Start difference. First operand 107 states and 142 transitions. Second operand 17 states. [2020-10-27 22:35:49,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:35:49,452 INFO L93 Difference]: Finished difference Result 219 states and 306 transitions. [2020-10-27 22:35:49,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 22:35:49,453 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 138 [2020-10-27 22:35:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:35:49,455 INFO L225 Difference]: With dead ends: 219 [2020-10-27 22:35:49,455 INFO L226 Difference]: Without dead ends: 107 [2020-10-27 22:35:49,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=233, Invalid=1173, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 22:35:49,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-27 22:35:49,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2020-10-27 22:35:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-27 22:35:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2020-10-27 22:35:49,471 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 138 [2020-10-27 22:35:49,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:35:49,471 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2020-10-27 22:35:49,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 22:35:49,471 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2020-10-27 22:35:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 22:35:49,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:35:49,474 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:35:49,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 22:35:49,474 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:35:49,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:35:49,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2083902716, now seen corresponding path program 8 times [2020-10-27 22:35:49,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:35:49,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935822572] [2020-10-27 22:35:49,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:35:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:49,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:49,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:49,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:49,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:49,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:35:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 22:35:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:54,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:35:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:54,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:54,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:54,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:35:54,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:35:54,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:35:54,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:35:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:35:54,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:35:54,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:35:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:54,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:54,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:54,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:55,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:59,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-27 22:35:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:35:59,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:35:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:35:59,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:59,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:35:59,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:00,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:04,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:04,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:36:04,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:36:04,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 22:36:04,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:36:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:36:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:04,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:04,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:04,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:04,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:04,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:04,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:36:04,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:36:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-27 22:36:04,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:36:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:36:04,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:04,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:04,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:04,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:36:04,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:36:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 22:36:04,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:36:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:36:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:04,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:04,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:04,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:04,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:04,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:04,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:36:04,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:36:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:36:04,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:36:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:36:05,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:36:05,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:36:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:36:05,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:36:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:05,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:36:05,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:36:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:36:05,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:36:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 22:36:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:05,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:36:05,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:05,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:36:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:36:05,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:36:05,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:05,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:05,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:36:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:36:05,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:36:05,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:36:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 22:36:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:05,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:36:05,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:05,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:36:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:36:05,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:36:05,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:36:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:05,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:05,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:05,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 24 proven. 109 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2020-10-27 22:36:05,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935822572] [2020-10-27 22:36:05,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:36:05,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 22:36:05,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244818276] [2020-10-27 22:36:05,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:36:05,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:36:05,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:36:05,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:36:05,089 INFO L87 Difference]: Start difference. First operand 96 states and 125 transitions. Second operand 13 states. [2020-10-27 22:36:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:36:05,953 INFO L93 Difference]: Finished difference Result 215 states and 297 transitions. [2020-10-27 22:36:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 22:36:05,953 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 111 [2020-10-27 22:36:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:36:05,955 INFO L225 Difference]: With dead ends: 215 [2020-10-27 22:36:05,956 INFO L226 Difference]: Without dead ends: 115 [2020-10-27 22:36:05,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:36:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-27 22:36:05,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2020-10-27 22:36:05,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-27 22:36:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2020-10-27 22:36:05,981 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 111 [2020-10-27 22:36:05,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:36:05,982 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2020-10-27 22:36:05,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:36:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2020-10-27 22:36:05,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-27 22:36:05,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:36:05,984 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:36:05,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 22:36:05,985 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:36:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:36:05,985 INFO L82 PathProgramCache]: Analyzing trace with hash -743856499, now seen corresponding path program 9 times [2020-10-27 22:36:05,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:36:05,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013756670] [2020-10-27 22:36:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:36:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:06,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:06,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:06,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:06,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:06,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:07,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:11,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-27 22:36:11,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-27 22:36:11,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-27 22:36:11,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 22:36:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 22:36:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 22:36:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:11,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:36:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:11,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:11,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:36:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:36:11,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:11,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:36:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:11,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:11,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:12,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:13,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:13,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:13,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:13,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:14,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:14,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:14,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:15,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:15,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:15,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:15,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:15,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:16,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-27 22:36:16,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 37 [2020-10-27 22:36:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-27 22:36:16,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:36:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 22:36:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 22:36:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:16,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:16,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:16,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:21,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:21,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:36:21,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 22:36:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 22:36:21,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:36:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:36:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 22:36:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:21,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:21,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:21,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:21,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 22:36:26,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:36:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 22:36:26,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:36:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:36:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:36:26,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:26,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:36:26,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:36:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 22:36:26,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:36:26,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:36:26,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:36:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:36:26,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:36:26,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:36:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:26,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:26,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:36:26,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:36:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:36:26,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:36:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:36:26,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:36:26,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 22:36:26,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:36:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:36:26,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:36:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:36:26,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:26,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:36:26,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:36:26,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:36:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 22:36:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:36:26,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:36:26,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:36:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:36:26,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:36:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:36:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:36:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:36:26,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:36:26,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:36:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:36:26,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:26,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:27,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:36:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking...